QUANTECH LTD /MN/
10QSB, 1997-11-14
COMPUTER STORAGE DEVICES
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM 10-QSB

                   Quarterly Report Under Section 13 or 15(d)
                     of the Securities Exchange Act of 1934

For Quarter Ended:                                     Commission File Number:
September 30, 1997                                            0 - 19957

                                  Quantech Ltd.
- -------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

            Minnesota                                       41-1709417
- -------------------------------------------------------------------------------
     (State or other jurisdiction                        (I.R.S. Employer
     of incorporation or organization)                  identification No.)

                             1419 Energy Park Drive
                               St. Paul, MN 55108
- --------------------------------------------------------------------------------
  (Address of principal executive offices)                       (Zip code)

                                 (612)-647-6370
- --------------------------------------------------------------------------------
              (Registrant's telephone number, including area code)

                                       N/A
- --------------------------------------------------------------------------------
              (Former name, former address and former fiscal year,
                          if changed since last report)

         Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days.

                      YES     X     NO 

         Indicate  the  number of  shares  outstanding  of each of the  issuer's
classes of common stock as of the latest practicable date:  51,040,759 shares of
Common Stock, par value $.01 per share, outstanding as of November 14, 1997.

         Transitional Small Business Disclosure Format:  YES      NO  X


<PAGE>


                                      Index

PART I.    FINANCIAL INFORMATION                                      Page No.

   Item 1:     Financial Statements:

     Balance Sheets as of September 30, 1997 and June 30, 1997             3

     Statement of Operations for the Three Months
     Ended September 30, 1997 and 1996 and from inception to
     September 30, 1997                                                    4

     Statement of Stockholders' Equity from inception                      5
     to September 30, 1997

     Statement of Cash Flows for the Three Months  ended  
     September  30, 1997 and 1996 and from inception to
     September 30, 1997                                                    6

     Notes to Financial Statements                                         7

   Item 2:      Management's Discussion and Analysis or Plan of Operation  8

   Item 3:      Quantitative and Qualitative Disclosure About Market Risk 11

PART II.    OTHER INFORMATION                                             12



<PAGE>


                                  QUANTECH LTD.
                         ( A Development Stage Company )

                     NOTES TO UNAUDITED FINANCIAL STATEMENTS

Note 1. BASIS OF PRESENTATION
In the opinion of the  management  of the Company,  the  accompanying  unaudited
financial  statements  contain  all  adjustments  (consisting  of  only  normal,
recurring adjustments) necessary to present fairly the financial position of the
Company as of  September  30,  1997 and the results of  operations  and its cash
flows for the three month periods ended September 30, 1997 and 1996. The results
of  operations  for any interim  period are not  necessarily  indicative  of the
results  for the year.  These  interim  financial  statements  should be read in
conjunction with the Company's annual financial  statements and related notes in
the Company's Annual Report on Form 10-KSB for the year ended June 30, 1997.

Note 2. LICENSE AGREEMENT
The Company  has a license  agreement  with  Ares-Serono  for  certain  patents,
proprietary  information and associated hardware related to SPR technology.  The
license calls for an ongoing royalty of 6 percent on all products  utilizing the
SPR  technology  which are sold by the  Company.  In  addition,  if the  Company
sublicenses the technology,  the Company will pay a royalty of 15 percent of all
revenues  received by the Company  under any  sublicense.  The original  license
agreement  allowed  Ares-Serono  to  develop  and  market,  under  its own name,
products  using the SPR  technology.  In  November  1997  Ares-Serono  agreed to
eliminate this  provision of the license  agreement in return for two additional
minimum  royalty  payments of $150,000 on each of December 31, 1998 and 1999. As
of September 30, 1997, the Company had paid $850,000 of the  cumulative  royalty
payments.  In order to maintain its exclusive  rights under the revised  license
agreement,  the Company must make its final original minimum payment of $150,000
by December 31, 1997, and the additional  $150,000 payments in December 1998 and
1999. The Company has ratably accrued  additional  minimum  royalty  payments of
$131,250 as of September 30, 1997, because sales or sublicense  revenues through
December  31, 1997 may not be adequate to meet the  cumulative  minimum  royalty
payments.  The Company  intends to accrue  $150,000 by December  31,  1997,  and
continue  accruing for future payments until royalty  accruals based on revenues
exceed the minimum payment amounts.

Note 3. ISSUED BUT NOT YET ADOPTED ACCOUNTING STANDARD
The FASB has issued Statement No. 128, Earnings Per Share,  which supersedes APB
Opinion No. 15.  Statement  No. 128  requires the  presentation  of earnings per
share by all entities that have common stock or potential common stock,  such as
options,  warrants,  and  convertible  securities,  outstanding  that trade in a
public  market.  Those  entities  that have only common  stock  outstanding  are
required to present basic  earnings  per-share  amounts.  All other entities are
required  to present  basic and diluted  per-share  amounts.  Diluted  per-share
amounts assume the  conversion,  exercise,  or issuance of all potential  common
stock  instruments  unless the effect is to reduce a loss or increase the income
per common share from continuing  operations.  All entities  required to present
per-share  amounts must initially apply Statement No. 128 for annual and interim
periods  ending after December 15, 1997.  Earlier  application is not permitted.
The adoption of Statement No. 128 would have had no effect on reported  earnings
(loss) per share.

<PAGE>

                                  QUANTECH LTD.
                          (A Development Stage Company)
                                  BALANCE SHEET

<TABLE>
<CAPTION>

                                                                             (Unaudited)     
                                                                             September 30,         June 30,
                                                                                1997                 1997
                                                                          ------------------   ------------------
<S>                                                                     <C>                   <C>    
ASSETS

CURRENT ASSETS
  Cash and cash equivalents                                             $           187,154    $         718,893
  Deferred debt issue costs                                                          64,751               78,699
  Other current assets                                                               35,133               35,452
                                                                          ------------------   ------------------
Total Current Assets                                                                287,038              833,044
                                                                          ------------------   ------------------

EQUIPMENT
  Equipment                                                                         331,133              329,780
  Leasehold Improvements                                                             15,000               15,000
                                                                          ------------------   ------------------
                                                                                    346,133              344,780
   Less accumulated depreciation                                                   (154,870)            (139,267)
                                                                          ------------------   ------------------
Total Equipment                                                                     191,263              205,513
                                                                          ------------------   ------------------

OTHER ASSETS
  License agreement, at cost, less amortization                                   2,980,779            2,096,558
  Patents, at cost, less amortization                                                 9,029                8,895
  Organization expenses, at cost, less amortization                                     -                    113
                                                                          ------------------   ------------------
Total Other Assets                                                                2,989,808            2,105,566
                                                                          ------------------   ------------------

TOTAL  ASSETS                                                           $         3,468,109    $       3,144,123
                                                                          ==================   ==================

LIABILITIES AND STOCKHOLDERS EQUITY (DEFICIT)

CURRENT LIABILITIES
  Short term debt                                                       $          1,645,00    $       1,070,000
  Accounts Payable                                                                   73,130              100,794
  Accrued Expenses:
    Spectrum Diagnostics Inc. obligations                                            32,060               36,509
    Minimum Royalty Commitment                                                      131,250              112,500
    Accrued Interest                                                                 49,379               10,685
    Accrued Severance                                                                36,912               77,265
    Accrued Payroll/Vacation                                                         20,501               54,226
    Other                                                                               -                  4,019
                                                                          ------------------   ------------------
Total Current Liabilities                                                         1,988,232            1,465,998
                                                                          ------------------   ------------------

STOCKHOLDERS EQUITY (DEFICIT)
  Common stock, $.01 par value; authorized 90,000,000                                           
   shares; issued and outstanding 51,040,759 shares at
   September 30, 1997; and 48,040,759 at June 30, 1997                              510,408              480,408
  Additional paid-in capital                                                     15,966,189           15,606,017
  Deficit accumulated during the development stage                              (14,996,720)         (14,408,300)
                                                                          ------------------   ------------------
Total Stockholders Equity                                                         1,479,877            1,678,125
                                                                          ------------------   ------------------

TOTAL LIABILITIES AND STOCKHOLDERS EQUITY                               $         3,468,109 $          3,144,123
                                                                          ==================   ==================

</TABLE>


<PAGE>


                                  QUANTECH LTD.
                          (A Development Stage Company)
                        STATEMENT OF OPERATIONS-UNAUDITED

<TABLE>
<CAPTION>

                                                                                                       Period From
                                                                                                      September 30,
                                                     Three Months           Three Months              1991 (Date of
                                                         Ended                  Ended                Inception), to
                                                     September 30,          September 30,             September 30,
                                                         1997                   1996                      1997
                                                  --------------------   --------------------      --------------------

<S>                                                <C>                    <C>                      <C>    
Interest Income                                    $            6,824     $           34,692        $          177,605
                                                  --------------------   --------------------      --------------------

Expenses:
  General and Administrative                                  222,857                357,494                 7,881,065
  Research and Development                                    314,261                362,832                 4,959,966
  Sales and Marketing                                             -                      -                     282,380
  Minimum Royalty expense                                      18,750                 18,750                   981,250
  Losses resulting from transactions                                      
   with Spectrum Diagnostics Inc.                                 -                      -                     556,150
  Net Exchange (gain)                                             -                      -                     (67,172)
  Financing                                                    39,376                  2,413                   538,091
                                                  --------------------   --------------------      --------------------
Total Expenses                                                595,244                741,489                15,131,730
                                                  --------------------   --------------------      --------------------

Loss before income taxes                                     (588,420)              (706,797)              (14,954,125)

Income Taxes                                                      -                      -                      42,595
                                                  --------------------   --------------------      --------------------

Net Loss                                           $         (588,420)    $         (706,797)       $      (14,996,720)
                                                  ====================   ====================      ====================

Loss per common share                              $            (0.01)    $            (0.02)
Weighted average common shares                                            
  outstanding                                              48,497,281             46,902,063

                                                   
</TABLE>



<PAGE>
                                  QUANTECH LTD
                          (A Development Stage Company)
                   STATEMENT OF STOCKHOLDERS' EQUITY-UNAUDITED
    Period From September 30, 1991 (date of Inception), to September 30, 1997
<TABLE>
<CAPTION>
                                                                           Deficit
                                                                         Accumulated
                                                                           During
                                                     Par     Additional      the                   Paid for      Due     Cumulative
                                        Shares      Value      Paid-In   Development  Subscriptions   Not        From    Translation
                                        Issued     Amount      Capital      Stage     Receivable    Issued     Officers  Adjustment
                                       ---------------------------------------------------------------------------------------------
<S>                                    <C>        <C>         <C>         <C>           <C>        <C>         <C>       <C>    
Balance at Inception
 Net Loss for 15 months                                                   ($3,475,608)
 Common stock transactions:
  Common stock issued, October 1991    3,200,000  $3,154,574  
  Common stock issued, November 1991     600,000    $611,746  $1,788,254
  Common stock issuance costs                                  ($889,849)
  Cumulative translation adjustment                                                                                        $387,754
  Common stock issued, September 1992    700,000    $699,033    $875,967                 ($53,689)
  Common stock issuance costs                                  ($312,755)
  Common stock to be issued                                                                          $120,000
  Cumulative translation adjustment                                                                                       ($209,099)
  Elimination of cumulative translation
  adjustment                                                                                                              ($178,655)
 Officers advances, net                                                                                         ($27,433)
                                       ---------------------------------------------------------------------------------------------
Balance, December 31, 1992             4,500,000  $4,465,353  $1,461,617  ($3,475,608)   ($53,689)   $120,000   ($27,433)        $0
 Net loss                                                                   ($996,089)
 Common stock transactions:
  Common stock issued, January 1993      160,000      $1,600    $118,400                            ($120,000)
  Common stock issued, April 1993         30,000        $300     $11,700
  Change in common stock par
   value resulting from merger                   ($4,420,353) $4,420,353
 Repayments                                                                                                       $5,137
                                       ---------------------------------------------------------------------------------------------
Balance,June 30, 1993                  4,690,000     $46,900  $6,012,070  ($4,471,697)   ($53,689)         $0   ($22,296)        $0
 Net loss                                                                 ($1,543,888)
 240,000 shares of common
 stock to be issued                                                                                   $30,000
 Repayments                                                                               $53,689                $22,296
                                       ---------------------------------------------------------------------------------------------
Balance, June 30, 1994                 4,690,000     $46,900  $6,012,070  ($6,015,585)         $0     $30,000         $0         $0
 Net loss                                                                 ($2,070,292)
 Common stock issued, June 1995        2,150,000     $21,500    $276,068                 ($20,000)   ($30,000)
 Warrants issued for services                                    $40,200                                       
                                       ---------------------------------------------------------------------------------------------
Balance June 30, 1995                  6,840,000     $68,400  $6,328,338  ($8,085,877)   ($20,000)         $0         $0         $0
 Net loss                                                                 ($2,396,963)
 Common stock issued, net of
  issuance costs of $848,877:                                 
     July, 1995                        6,160,000     $61,600  $1,304,450
     August, 1995                        717,600      $7,176    $161,460
     September, 1995                  13,807,296    $138,073  $2,370,389
     November, 1995                    1,897,840     $18,978    $425,482
     December, 1995                   11,217,157    $112,172  $1,292,473
     May, 1996                         6,275,000     $62,750  $3,300,422
     June, 1996                            5,058         $51      $3,650
 Payments received on                                         
  subscription receivable                (19,192)      ($192)   ($14,808)                 $20,000
 Compensation expense recorded
  on stock options                                              $125,000
                                       ---------------------------------------------------------------------------------------------
Balance, June 30, 1996                 46,900,759   $469,008 $15,296,856 ($10,482,840)         $0          $0         $0         $0
 Net loss                                                                 ($3,925,460)
 Stock offering costs                                           ($12,310)
 Common stock issued upon exercise of
 options and warrants
     September 1996                       10,000        $100      $2,400
     October 1996                        170,000      $1,700     $40,800
     November 1996                        15,000        $150      $3,600
     December 1996                       270,000      $2,700     $64,800                 ($57,500)
     January 1997                         20,000        $200      $4,800
     February 1997                       150,000      $1,500     $17,250
     March 1997                          140,000      $1,400     $33,600
 Payments received on
  subscription receivable                                                                 $57,500
 Compensation expense recorded
  on stock options                                               $48,000
 Common stock issued, June 1997          365,000      $3,650    $105,850
 Warrants issued with notes payable                                 $371
                                       ---------------------------------------------------------------------------------------------
Balance, June 30, 1997                48,040,759    $480,408 $15,606,017 ($14,408,300)         $0          $0         $0         $0
 Net Loss                                                                   ($588,420)
 Warrants issued with notes payable                                   $7
 Common stock issued, September 1997   3,000,000     $30,000    $360,000
 Warrants issued, September 1997                                    $165
                                       =============================================================================================
Balance, September 30, 1997           51,040,759    $510,408 $15,966,189 ($14,996,720)         $0          $0         $0         $0
                                       =============================================================================================

</TABLE>

<PAGE>

                                  QUANTECH LTD
                          (A Development Stage Company)
                        STATEMENT OF CASH FLOWS-UNAUDITED

<TABLE>
<CAPTION>

                                                                                                          Period From
                                                                                                         September 30,
                                                                   Three Months        Three Months      1991 (Date of
                                                                      Ended               Ended          Inception), to
                                                                   September 30,       September 30,     September 30,
                                                                      1997                1996                1997
                                                                ------------------  ------------------  -----------------
<S>                                                           <C>                   <C>                 <C>    
Cash Flows From Operating Activities
 Net Loss                                                     $          (588,420)   $       (706,797)   $   (14,996,720)
 Adjustments to reconcile net loss to net cash used in
  operating activities:
  Elimination of cumulative translation adjustment                             -                  -             (178,655)
  Depreciation                                                             15,603              13,841            201,224
  Amortization                                                             80,408              59,732          1,437,025
  Noncash compensation and interest                                           -                   -              537,250
  Losses resulting from transactions with
   Spectrum Diagnostics Inc.                                                  -                   -              556,150
  Write down of investment                                                    -                   -               67,500
  Change in assets and liabilities, net of effects from
   purchase of Spectrum Diagnostics Inc.:
   (Increase) decrease in other current assets                                319             (27,705)            41,305
    Increase (decrease)in accounts payable                                (27,664)             40,932             71,575
    Increase (decrease) in accrued expenses                               (25,102)             23,367            544,226
                                                                ------------------  ------------------  -----------------
     Net cash used in operating activities                               (544,856)           (596,630)       (11,719,120)
                                                                ------------------  ------------------  -----------------
                                                                                                         
Cash Flows From Investing Activities                                                                     
 Purchase of property and equipment                                        (1,353)            (64,654)          (422,891)
 Proceeds on disposition of property                                            -                 -               37,375
 Organization expenses                                                          -                 -              (97,547)
 Patent spending                                                             (134)                -               (9,029)
 Officer advances, net                                                          -                 -             (109,462)
 Purchase of investment                                                         -                 -             (225,000)
 Purchase of license agreement                                                  -                 -           (1,950,000)
 Advances to Spectrum Diagnostics, Inc.                                         -                 -             (320,297)
 Prepaid securities issuance costs                                        (10,403)                -             (112,046)
 Purchase of Spectrum Diagnostics, Inc., net of cash                                                     
  and cash equivalents acquired                                                 -                 -           (1,204,500)
                                                                ------------------  ------------------  -----------------
   Net cash used in investing activities                                  (11,890)            (64,654)        (4,413,397)
                                                                ------------------  ------------------  -----------------
                                                                                                         
Cash Flows From Financing Activities
 Net proceeds from the sale of common stock & warrants                          7               2,500         12,880,804
 Proceeds on debt obligations                                              25,000                 -            3,753,435
 Payments received on stock subscription receivables                            -                 -                5,000
 Stock offering costs                                                           -             (12,310)                -      -
 Payments on debt obligations                                                   -              (4,605)          (522,810)
                                                                ------------------  ------------------  -----------------
  Net cash provided by financing activities                                25,007             (14,415)        16,116,429
                                                                ------------------  ------------------  -----------------

Effect of Exchange Rate Changes on Cash                                         -                 -              203,242
                                                                ------------------  ------------------  -----------------
   Net increase (decrease) in cash                                       (531,739)           (675,699)           187,154
Cash
 Beginning                                                                718,893           2,942,871                 -
                                                                ------------------  ------------------  -----------------
 Ending                                                       $           187,154    $      2,267,172    $       187,154
                                                                ==================  ==================  =================
                                                                 
Non-Cash Investing and Financing Activities
 Issuance of debt, common stock and warrants for
  sublicensing rights                                         $           940,165    $              0    $       940,165
                                                                ==================  ==================  =================

</TABLE>



<PAGE>

ITEM 2                     MANAGEMENT'S DISCUSSION AND ANALYSIS
                              OR PLAN OF OPERATION

History

     Quantech Ltd.  ("Quantech"  or the  "Company") was formed under the laws of
Minnesota  for the  purpose of  effecting  the change of  domicile  of  Spectrum
Diagnostics  S.p.A.  ("SDS")  from Italy to the state of  Minnesota  through the
merger  with SDS on April 14,  1993.  Quantech  had no  operations  prior to the
merger and is continuing the business of SDS to  commercialize  Surface  Plasmon
Resonance  ("SPR")  technology  licensed  from  Ares-Serono,  S.A. SPR, the core
technology of Quantech's proposed medical diagnostic system, enables the Company
to integrate the existing diagnostic  methodologies of immunoassays,  DNA probes
and chemical binding into a single, simple economical system in order to provide
rapid,  quantitative,  diagnostic  results.  The Quantech  system  configuration
consists  of a small  bench  top  instrument  and a series of  disposables  each
offering  a  particular  test or  series of tests.  It is  anticipated  that the
Quantech system will have the ability to analyze body fluids (e.g.  whole blood,
urine) without  preparation or addition of reagents.  The Company plans to first
market its system and  related  disposables  to  hospital  Critical  Care Units,
initially  the  Emergency  Department.  Its first tests will aid  physicians  in
assessing whether a patient has suffered a heart attack.

     During November 1997 the Company and Ares-Serono agreed in principle to the
amendment  to the terms of the license  agreement,  which  amendment is awaiting
final  execution.  Ares-Serono  agreed to  eliminate a provision of the contract
that allowed it to market, under its own name, products using the SPR technology
in return for an increase in minimum royalty payments.  In order to maintain its
exclusive rights under the revised license agreement,  the Company must make its
original  minimum  payment of $150,000  by December  31,  1997,  and  additional
$150,000 payments in each of December 1998 and 1999.

     Quantech is a  development  stage  company  which has suffered  losses from
operations and will require additional financing to complete development, obtain
FDA approval and  commercialize its product.  The Company's product  development
must be completed,  FDA approval obtained, the product introduced to the market,
and ultimately, Quantech will need to successfully attain profitable operations.
These factors raise substantial doubt about the Company's ability to continue as
a going concern.

Results of Operations

     The Company has incurred a net loss of $14,996,720  from September 30, 1991
(date of  inception)  through  September  30,  1997 due to  expenses  related to
formation and operation of SDS in Italy,  continuing  costs of raising  capital,
normal expenses of operating over an extended  period of time,  funds applied to
research and development, royalty payments related to the SPR technology, losses
due to  expenses of  Quantech's  predecessor,  Spectrum  Diagnostics  Inc.,  and
interest on borrowed  funds.  In addition,  an investment of $3,356,629 was made
when Quantech purchased the exclusive rights to the SPR technology.

     For the three  months  ended  September  30, 1997 the Company had  interest
income of $6,824  compared to $34,692 for the same period in 1996. This decrease
is a result of less cash on hand as proceeds  obtained from  Quantech's  private
placements  of  securities  have  been  used for  operations  and  research  and
development.

     General and  administration  expenses  decreased  to $222,857 for the three
months  ended  September  30,  1997 from  $357,494  for the three  months  ended
September 30, 1996. The decrease in general and administrative  spending was the
result of the restructuring that the Company began in June 1997 and completed in
October 1997. The  restructuring was aimed at reducing expenses and focusing the
Company's resources on completing  development of its diagnostic system. Changes
that were implemented included reducing the number of employees, consultants and
outside services employed in the  administrative  and marketing  functions.  The
Company  anticipates  that these  expenses  will increase  significantly  in the
future  as the  Company  completes  development  of its  system  and  begins  to
manufacture and distribute its products.


<PAGE>

     Research and  development  costs  decreased to $314,261 in the three months
ended September 30, 1997 from $362,832 in the same period of 1996. This decrease
was due to the above mentioned  restructuring,  with cost  reductions  resulting
primarily from reduced outside contract  development work as the Company focused
its resources on completing the system development with a reconfigured  internal
development  team led by Thomas R. Witty,  Ph.D. who recently joined the Company
as Vice  President  of Research  and  Development.  It is  expected  that future
research and development  expenditures  will increase  significantly as Quantech
completes  development of its system,  conducts FDA work, and begins development
of additional disposable tests for its system.

     There was no change in the minimum royalty expense recorded for the quarter
ended  September  30, 1997  compared to the same quarter for the previous  year.
Royalty  expense is expected  to  increase  to $37,500  per quarter  starting in
January 1998 as the Company begins accruing for minimum  payments  scheduled for
December  1998 and 1999 (see  Notes to  Financial  Statements,  Note 2 - License
Agreement).

     Financing  expenses  were higher for the quarter  ended  September 30, 1997
compared  to the same  period  in 1996 due to  increased  debt  from the sale of
convertible promissory notes in 1997 to fund operations.  Financing expenses are
expected  to  increase  as a  result  of  the  sale  of  additional  convertible
promissory notes and interest on such notes.

     For the three  months  ended  September  30,  1997  Quantech  had a loss of
$588,420 as compared to $706,797 for the same period ended  September  30, 1996.
This decreased loss was the result of lower operating  expenses partially offset
by lower interest income.

     The Company has made significant progress in the development of its system,
but this progress has been much slower than  anticipated.  Although Quantech has
been able to complete prototype systems that demonstrate that its SPR technology
does  work to  detect  certain  conditions,  it has  not  been  able to  achieve
reproducible  results at sensitivity levels necessary for quantitative  analysis
throughout the entire required  clinical range for its initial test.  Quantech's
development is focused upon the system reproducibility and sensitivity necessary
for FDA approval and market acceptance.  After such development is complete, the
next  major  step will be to submit  its  system  and first  test to the FDA for
approval,  which submission is expected in early 1998.  Product  introduction is
anticipated in the later part of 1998, which introduction is expected to include
at least two tests for the system.

     In addition to development  activity,  the Company is in  discussions  with
potential strategic partners regarding the sublicensing of Quantech's technology
outside of its core medical area,  research and development  collaborations  for
medical and industrial  applications of Quantech's  technology,  distribution of
its system once developed and device manufacturing. The timetable for submitting
the  Company's  system  to the  FDA  and  introduction  to the  market  will  be
influenced  by the  Company's  ability  to obtain  further  funding,  enter into
strategic relationships, complete prototype development of its system, necessary
testing for  submission of its FDA filing and delays it may  encounter  with the
FDA in its review of the system. There can be no assurance that the Company will
be able to obtain the required funding,  enter into any strategic  agreements or
ultimately complete its system.

Liquidity and Capital Resources

     From  inception to September  30, 1997,  Quantech has raised  approximately
$17,600,000 through a combination of public stock sales, private stock sales and
debt  obligations.  Additional funds are needed  immediately to continue current
operations.  To provide these additional funds, the Company is currently seeking
up to a maximum  of  $1,405,000  through  the sale of notes  (the  "Notes")  and
warrants (the "Warrants"). The Notes will be due and payable on June 1, 1998, or
earlier upon Quantech  completing a transaction  that provides it with a minimum
of $5,000,000 (the "Additional  Funding").  Interest will be the prime rate plus

<PAGE>


five  percent and the Notes will be secured by all of the assets of the Company.
For each dollar  invested  in the Note the  investor  will  receive a Warrant to
purchase three shares of Quantech Common Stock at an exercise price equal to the
lower of (a) $0.25 per share; (b) the average market value of Quantech's  Common
Stock for the ten trading  days prior to December  20,  1997;  or (c) 80% of the
price of the Additional  Funding or, if the Additional  Funding has not occurred
prior to June 1,  1998,  the lower of 80% of the market  price of the  Company's
Common  Stock for the 20  consecutive  trading days prior to the issuance of the
Warrant or June 1, 1998. The principal  amount of the Notes are convertible into
shares of the Company's  Common Stock at a price equal to, and calculated in the
same manner as, the Warrant Exercise Price. Terms are subject to negotiation and
may change. The Company believes it will complete the sale of most or all of the
$1,405,000  of the Notes by December  20,  1997,  and  Directors,  and  Director
affiliates,  of the Company have already purchased  $150,000 of the Notes. There
can be no assurance, however, that the Company will be able to raise this or any
other  funding  and  continue  its  operations.  See  "Cautionary  Statements  -
Immediate and Future Capital Needs."

     The Company  anticipates that the $1,405,000 will be sufficient to allow it
to complete development of its system, start its FDA work, and make its December
31, 1997 $150,000 minimum royalty payment to Ares-Serono. Funds of at least $7.5
million will be needed to complete  its FDA work,  begin  developing  additional
tests,  establish  manufacturing  capabilities,  launch the Quantech  system and
repay the Notes.  Quantech is  currently  reviewing  multiple  avenues of future
funding including a secondary offering of securities,  private sale of equity or
debt with equity features or arrangements with strategic  partners.  The Company
does  not have  any  commitments  for any such  financing  and  there  can be no
assurance  that the Company will obtain  additional  capital when needed or that
additional  capital  will not have a dilutive  effect on  current  shareholders.
Although the Company has a limited  lending  arrangement  with its bank, it does
not anticipate receiving significant funding from commercial lenders.

     Quantech incurred capital  expenditures of $1,353 in the three month period
ended  September  30,  1997.  The  Company   anticipates   significant   capital
expenditures  in the future for laboratory  and production  equipment and office
expansion as the Company  nears product  introduction.  The timing and amount of
such  expenditures  will be governed  by the  Company's  development  and market
introduction  schedules  which are  subject to change due to a number of factors
including development delays, FDA approval and availability of future financing.

     The Company currently has outstanding 51,040,759 shares of Common Stock. It
also has options and warrants  outstanding to purchase an additional  23,143,903
shares.

Cautionary Statements

     As provided for under the Private  Securities  Litigation  Act of 1995, the
Company wishes to caution investors that the following important factors,  among
others,  in some  cases  have  affected,  and in the future  could  affect,  the
Company's  actual  results  of  operations  and  cause  such  results  to differ
materially  from those  anticipated in  forward-looking  statements made in this
document and elsewhere by or on behalf of the Company.

No History of Operations; Development Stage Company; Going Concern Uncertainty

     To date,  the Company does not have a product ready to be brought to market
and its proposed  operations  are subject to all of the risks  inherent in a new
business  enterprise,  including  completion of commercial  development  and FDA
approval  of  its  instrument   within  reasonable  time  frames  and  financial
constraints,  lack of marketing  experience and lack of production history.  The
likelihood  of the success of the  Company  must be  considered  in light of the
expenses,  difficulties and delays frequently encountered in connection with the
start-up of new businesses,  and specifically those historically  encountered by
Quantech,  the development of a new product and the  competitive  environment in
which the Company will operate.  The report of the  independent  auditors on the
Company's  financial  statements for the period ended June 30, 1997, includes an
explanatory  paragraph  relating to the uncertainty of the Company's  ability to
continue as a going  concern.  The Company is a development  stage company which
has  suffered  losses  from  operations,   requires  additional  financing,  and
ultimately needs to successfully  attain  profitable  operations.  These factors
raise  substantial  doubt  about the  Company's  ability to  continue as a going
concern.  There can be no  assurance  that the Company will be able to develop a
commercially viable product or marketing system or attain profitable operations.

<PAGE>

Immediate and Future Capital Needs

     The Company does not have sufficient  funds to complete  development of its
system, submit its system to the FDA or commence commercial production and sales
of its system.  The Company's  ability to continue as a going concern,  complete
its system, submit its system to the FDA and commence sales will depend upon the
continued  availability  of  investment  capital,   funding  made  by  strategic
partner(s) or licensing  revenues,  until  revenues from the sale of instruments
and  associated  test   disposables  are  sufficient  to  maintain   operations.
Additional  funds may have to be raised through equity or debt financing.  There
can be no assurance that any  additional  financing can be obtained on favorable
terms,  if at all. Such  additional  financing may result in dilution to Company
shareholders  and/or additional debt to the Company. If funding is not available
immediately  and in the future when  needed,  the Company may be forced to cease
operations and abandon its business.  In such event,  Company shareholders could
lose their entire investment.

Other Factors

     As described in the Company's  Form 10-KSB for the year ended June 30, 1997
under Cautionary Statements, there are additional factors concerning the Company
that should be  considered  including:  uncertainty  of market  acceptance  of ,
effects of government  regulation on Quantech's product and its sale, ability to
manufacture  its product,  exposure to the risk of product  liability and market
for the Company's shares.


ITEM 3                    QUANTITATIVE AND QUALITATIVE DISCLOSURE
                                ABOUT MARKET RISK

Not Applicable.


<PAGE>


PART II
                                OTHER INFORMATION


Item 1. Legal Proceedings
        Not Applicable

Item 2. Changes in Securities
        In  September  1997,  the Company  entered  into an  agreement to cancel
        certain  sublicense  rights that had been granted to other  parties.  In
        return for these sublicense  rights, the Company issued 3,000,000 shares
        of the Company's  Common Stock,  convertible  secured  promissory  notes
        totaling  $550,000,  and warrants to purchase 1,650,000 shares of Common
        Stock to the sublicense owners.

        The convertible secured promissory notes carry an interest rate of 13.5%
        and are payable June 1, 1998. The notes are also convertible into shares
        of Common  Stock at a price the  lessor of (I) $0.35 per share or (II) a
        price  equal to 80 percent of the market  price of the Common  Stock for
        (i) the 20  consecutive  trading days prior to the issuance of the notes
        or June 1, 1998, if the notes have not been paid by June 1, 1998 or (ii)
        the price at which the  transaction  which  triggers  prepayment  of the
        notes is  completed.  The warrants  exercise  price is calculated in the
        same manner as the notes conversion  price,  except the maximum price is
        limited to $0.25.

Item 3. Defaults upon Senior Securities
        Not Applicable

Item 4. Submission of Matters to a Vote of Security Holders
        Not Applicable

Item 5. Other Information
        Not Applicable

Item 6. Exhibits and Reports on 8-K
        a.   Exhibits -
         10.1 Form of convertible note issued to affiliate in private placement.
         10.2 Form of warrant issued to affiliate in private placement.
         10.3 Form of amended royalty agreement with Ares-Serono.
         27. Financial Data Schedule (filed in electronic format only)
        b. Reports on 8-K - None


                                   Signatures

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned, thereunto duly authorized.

                                                   QUANTECH LTD

                                                   /s/ Robert Case
                                                   Robert Case
                                                   Chief Executive Officer

                                                   /s/ Gregory G. Freitag
                                                   Gregory G. Freitag
                                                   Chief Operating Officer and
Date: November 14, 1997                            Chief Financial Officer


<PAGE>



                                  EXHIBIT INDEX
                                  QUANTECH LTD.
                          FORM 10-QSB for Quarter Ended
                               September 30, 1997


Exhibit Number                             Description
- -------------------    -----------------------------------------------------
        10.1           Form of convertible note issued to affiliate in
                       private placement.
        10.2           Form of warrant issued to affiliate in private placement.
        10.3           Form of amended royalty agreement with Ares-Serono.
        27             Financial Data Schedule (filed in electronic format only)




THE SECURITIES  REPRESENTED BY THIS  CERTIFICATE  HAVE NOT BEEN REGISTERED UNDER
EITHER THE SECURITIES ACT OF 1933 OR APPLICABLE  STATE  SECURITIES  LAWS AND MAY
NOT BE SOLD, TRANSFERRED,  ASSIGNED,  OFFERED,  PLEDGED OR OTHERWISE DISTRIBUTED
FOR VALUE UNLESS THERE IS AN EFFECTIVE REGISTRATION STATEMENT UNDER SUCH ACT AND
SUCH LAWS  COVERING  SUCH  SECURITIES,  OR THE  COMPANY  RECEIVES  AN OPINION OF
COUNSEL ACCEPTABLE TO THE COMPANY STATING THAT SUCH SALE, TRANSFER,  ASSIGNMENT,
OFFER,  PLEDGE OR OTHER  DISTRIBUTION  FOR VALUE IS EXEMPT FROM THE REGISTRATION
AND PROSPECTUS DELIVERY REQUIREMENTS OF SUCH ACT AND SUCH LAWS.

                                  QUANTECH LTD.

$_______________                                           ______________, 1997
                                                                (Date of Issue)

         1.  The  Convertible  Note.  Quantech  Ltd.,  a  Minnesota  corporation
(hereinafter  the "Company")  promises to pay to the order of  (hereinafter  the
"Holder"),  at the Holder's  address as  registered  with the Company or at such
other place as the Holder may designate in writing from time to time, Dollars ($
), in legal tender of the United  States,  with interest  accruing on the unpaid
principal  balance  as of the date  hereof  at the rate of  ___________  percent
(______%)  per annum (which is equal to five percent (5%) plus the Prime Rate as
quoted in the Wall Street Journal on the date hereof).  The entire principal and
accrued  interest on this  Convertible Note shall be due and payable in full, in
cash, on the earliest to occur of (i) June 1, 1998,  (ii) the  completion by the
Company of its next private or public equity financing with gross proceeds of at
least $5,000,000 ("Financing") or (iii) the completion of any sale or conveyance
to  another  corporation  of the  property  of the  Company  as an  entirety  or
substantially as an entirety ("Sale"),  (iv) the completion of any consolidation
or  merger  to  which  the  Company  is a party  or any  statutory  exchange  of
securities  with  another  corporation   (including  any  exchange  effected  in
connection with a merger of a third corporation into the Company) ("Merger"), or
(v) the execution of any  licensing  arrangement  in  connection  with which the
Company provides the right to control a significant  portion of its business and
receives  cash in  excess  of  $5,000,000  upon  execution  of such  arrangement
("Licensing"). Interest shall be computed on the basis of actual days elapsed in
a year of three hundred sixty (360) days.  With 20 days' written notice from the
Company,  the indebtedness  evidenced by this Convertible Note may be prepaid in
whole or in part at any time without penalty or premium, but partial prepayments
shall be applied  first to  accrued  interest  payments  owing  hereunder.  This
Convertible Note is delivered by the Company in accordance with the Subscription
and Loan Agreement of even date herewith entered into by the Holder and accepted
by the Company.

         2.  Subordination.  This  Convertible  Note is secured by the Company's
assets as set forth in the Security  Agreement of even date herewith.  The terms
of this Convertible Note are subject to the terms of the Security  Agreement and
Inter-Creditor Agreement each dated of even date herewith. The Company covenants
and  agrees,  and each  Holder of the  Convertible  Note by  acceptance  thereof
covenants  and agrees,  that the payment of the principal of and the interest on
the Convertible  Note is hereby  expressly  subordinated and made subject to the
prior payment in full of all indebtedness of the Company outstanding on the date
hereof or hereafter  incurred (i) for money  borrowed by the Company from banks,
finance companies, trust companies, pension trusts, insurance companies or other
financial institutions; (ii) in connection with the issuance of tax exempt notes


<PAGE>

or debentures; and (iii) in connection with the acquisition of capital equipment
(collectively,  the "Senior Debt").  By acceptance of the Convertible  Note, the
Holder expressly agrees that Agent appointed in the Inter-Creditor Agreement has
the authority to execute  subordination  agreements on behalf of the Holder with
holders of the Senior Debt.

         3.  Transferability.  The Convertible Note may be converted into Common
Stock of the Company  pursuant to the terms of Section 6 hereof (the "Conversion
Shares"), and the Convertible Note and the Conversion Shares may be transferred,
subject to the  following  conditions.  The Holder of the  Convertible  Note, by
acceptance  thereof,  agrees to give written  notice to the Company at least ten
(10)  days  before   transferring  or  converting  the   Convertible   Note,  or
transferring any Conversion Shares, of such Holder's intent to do so, describing
briefly  the  manner of the  proposed  transfer  or  conversion.  Promptly  upon
receiving  such written  notice,  the Company  shall present  copies  thereof to
counsel for the Company.  If, in the opinion of counsel satisfactory in form and
substance to the Company,  the proposed  transfer or conversion  may be effected
without  constituting a violation of the applicable federal and state securities
laws, such Holder shall be entitled to transfer or convert the Convertible  Note
or to  dispose  of  the  Conversion  Shares  received  upon  conversion  of  the
Convertible Note as contemplated in the above referred to notice provided by the
Holder to the Company,  provided that an  appropriate  legend may be endorsed on
the  Convertible  Note  or the  certificates  for any of the  Conversion  Shares
respecting  restrictions  on transfer  thereof  necessary  or  advisable  in the
opinion of counsel  satisfactory in form and substance to the Company to prevent
further  transfers  which  would  be in  violation  of the  securities  laws  or
adversely affect the exemptions relied upon by the Company.  To such effect, the
Company may request  that the  intended  transferee  execute an  investment  and
representation  letter  satisfactory in form and substance to the Company.  Upon
transfer of the Convertible Note or any Conversion  Shares,  the transferee,  by
acceptance of the Convertible Note or Conversion  Shares,  agrees to be bound by
the provisions,  terms,  conditions and limitations of the Convertible  Note and
the investment and  representation  letter, if any, required by the Company.  If
(a) no opinion of counsel  referred to in this Section has been  provided to the
Company, or (b) in the opinion of such counsel the proposed transfer, conversion
or disposition of the Convertible Note or the Conversion Shares described in the
Holder's  written  notice  given  pursuant  to this  Section may not be effected
without  registration or without adversely  affecting the exemptions relied upon
by the Company,  the Holder will limit its activities and restrict its transfer,
conversion or disposition accordingly.

         4.  Exchange  of  Convertible  Note.  At any time at the request of any
Holder  of the  Convertible  Note and upon  compliance  with the  provisions  of
Section 3 above and surrender of such  Convertible  Note for such purpose to the
Company  at its  principal  office  or such  other  office  or  agency as it may
authorize for such purpose,  the Company at its expense (except for any transfer
tax arising out of the exchange) shall execute and deliver in exchange  therefor
a  new  Convertible   Note  or  Convertible   Notes,  in  the   denomination  or
denominations  ($1,000 and integral multiples thereof only, plus one Convertible
Note in a lesser  denomination  if required)  as such Holder may request,  in an
aggregate  principal  amount equal to the unpaid portion of the principal amount
of the Convertible Note surrendered and substantially in the form thereof, dated
as of the date of the Convertible Note so surrendered and payable to or upon the
order of such Holder.

         5.   Replacement  of  Convertible   Note.   Upon  receipt  of  evidence
satisfactory to the Company of the loss, theft, destruction or mutilation of the

<PAGE>

Convertible  Note and in the case of any such loss,  theft or destruction,  upon
delivery of a bond of indemnity  satisfactory to the Company if requested by the
Company, or in the case of any such mutilation,  upon surrender and cancellation
of such  Convertible  Note,  the  Company  shall  issue a new  Convertible  Note
identical in form to the lost, stolen, destroyed or mutilated Convertible Note.

         6.       Conversion of Convertible Note.

                  (a) Right of Conversion.  Subject to and upon  compliance with
the  provisions  of  Section  3 above  and  this  Section,  the  Holder  of this
Convertible  Note or any Convertible  Notes issued in exchange for it shall have
the  right  at any time  after  the  Conversion  Price  (as  defined  below)  is
determined  and prior to the payment in full of this  Convertible  Note,  at the
Holder's  option,  to convert the principal  amount of any such Convertible Note
(with accrued interest up to the date of conversion to be paid in cash in full),
or any portion of such principal amount which is $1,000 or an integral  multiple
thereof, into that number of fully paid and nonassessable shares of Common Stock
of the Company  obtained by dividing  the  principal  amount of the  Convertible
Note, or portion  thereof to be converted,  by the Conversion  Price (as defined
below),  subject to  adjustments  as  provided  herein and by  surrender  of the
Convertible  Note,  such  surrender  to be made in the manner  provided  in this
Section.  For purposes of this Convertible Note, the "Conversion Price" shall be
equal to the  lesser of (a) $.25 per  share,  (b) the  average  of the last sale
price of the Company's Common Stock for each of the 10 consecutive  trading days
immediately preceding December 20, 1997 or (c) the price per share determined as
follows:  (i) 80% of the per share  price at which any  shares of the  Company's
Common  Stock are sold in a  Financing  which is prior to the closing of a Sale,
Merger or Licensing  (as such terms are defined  below),  or (ii) in the case of
any Sale which is prior to the closing of a Financing,  Merger or Licensing, 80%
of the per share consideration the shareholders of the Company would be entitled
to  receive  if there  was a  distribution  to the  shareholders  (assuming  the
exercise of outstanding  "in-the-money" options and Convertible Notes, including
this Convertible Note) of proceeds from the Sale, or (iii) in case of any Merger
which is prior to the  closing of a  Financing,  Sale or  Licensing,  80% of the
average  of the  last  sale  price  of the  Company's  Common  Stock  for the 20
consecutive  trading days immediately  following the public  announcement of the
Merger,  or (iv) in the case of any Licensing which is prior to the closing of a
Financing,  Sale or  Merger,  80% of the  average  of the last sale price of the
Company's Common Stock for the 20 consecutive trading days immediately following
the  public  announcement  of the  Licensing,  or (v) in the  event  there is no
Financing, Sale, Merger or Licensing prior to June 1, 1998, the Conversion Price
shall be the  lower of (A) 80% of the  average  of the  last  sale  price of the
Company's  Common Stock for each of the 20 consecutive  trading days immediately
preceding the issuance of this Convertible Note or (B) 80% of the average of the
last sale price of the  Company's  Common  Stock for each of the 20  consecutive
trading days prior to June 1, 1998.

                  (b) Conversion  Price,  Subject to Adjustment.  The Conversion
Price shall be subject to adjustment from time to time as hereinafter  provided.
Upon each  adjustment of the Conversion  Price,  the Holder  thereafter  will be
entitled  to receive the number of shares of Common  Stock  obtained by dividing
the then effective  Conversion Price by the Conversion Price resulting from such
adjustment.

                  (c) Stock Split or Combination.  In case the corporation shall
at any time  subdivide  or split its  outstanding  Common  Stock  into a greater

<PAGE>

number of  shares,  the  Conversion  Price in effect  immediately  prior to such
subdivision or split shall be  proportionately  reduced,  and conversely in case
the outstanding Common Stock of the corporation shall be combined into a smaller
number of  shares,  the  Conversion  Price in effect  immediately  prior to such
combination shall be proportionately increased.

                  (d)  Capital  Reorganization,  Merger,  Etc.  If  any  capital
reorganization or reclassification  of the capital stock of the corporation,  or
consolidation or merger of the corporation with another corporation, or the sale
of all or  substantially  all of its  assets  to  another  corporation  shall be
effected in such a way that Holders of Common Stock shall be entitled to receive
stock,  securities  or assets with respect to or in exchange  for Common  Stock,
then, as a condition of such  reorganization,  reclassification,  consolidation,
merger or sale, lawful and adequate  provision shall be made whereby the Holders
shall thereafter have the right to receive upon the basis and upon the terms and
conditions  specified  herein and in lieu of the Common Stock of the corporation
immediately  theretofore receivable upon the conversion of the Convertible Note,
such  shares of stock,  securities  or assets as may be issued or  payable  with
respect to or in exchange  for a number of  outstanding  shares of Common  Stock
equal to the number of shares of Common Stock immediately theretofore receivable
upon  the  conversion  of  the   Convertible   Note  had  such   reorganization,
reclassification, consolidation, merger or sale not taken place, and in any such
case  appropriate  provision  shall  be made  with  respect  to the  rights  and
interests  of the  Holders  to the end that  the  provisions  hereof  (including
without limitation provisions for adjustments of the Conversion Price and of the
number of shares  receivable upon the conversion of the Convertible  Note) shall
thereafter  be  applicable,  as nearly as may be, in  relation  to any shares of
stock,  securities or assets  thereafter  receivable  upon the conversion of the
Convertible  Note.  The  corporation  shall not effect  any such  consolidation,
merger  or  sale,  unless  prior  to  the  consummation  thereof  the  surviving
corporation (if other than this  corporation),  the  corporation  resulting from
such  consolidation  or the  corporation  purchasing such assets shall assume by
written  instrument  executed and mailed to the  registered  Holders at the last
address  of  such  Holders  appearing  on  the  books  of the  corporation,  the
obligation to deliver to such Holders such shares of stock, securities or assets
as, in accordance with the foregoing provisions, such Holders may be entitled to
receive.

                  (e)  Notice  of  Adjustment  of  Conversion  Price.  Upon  any
adjustment of the Conversion  Price,  then and in each such case the corporation
shall give  written  notice  thereof,  by  first-class  mail,  postage  prepaid,
addressed to the registered Holders affected by such adjustment at the addresses
of such  Holders as shown on the books of the  corporation,  which  notice shall
state the Conversion  Price  resulting from such  adjustment and the increase or
decrease,  if any,  in the  number of shares  receivable  at such price upon the
conversions  of the  Convertible  Note,  setting forth in reasonable  detail the
method of calculation and the facts upon which such calculation is based.

                  (f)      Other Notices.  In case at any time:

                           (i)      the corporation  shall pay any dividend  
payable in stock upon its Common Stock or make any distribution (other than 
regular cash dividends) to the Holders of its Common Stock;

<PAGE>

                           (ii)     the  corporation  shall offer for 
subscription  pro rata to the Holders of its Common Stock any additional shares
of stock of any class or other rights;

                           (iii)    there shall be any capital reorganization,
reclassification  of the capital stock of the corporation,  or consolidation or
merger of the corporation  with, or sale of all or substantially all of its
assets to another corporation; or

                           (iv)     there shall be a voluntary or involuntary
dissolution,  liquidation or winding up of the corporation;

         then,  in any one or more of said  cases,  the  corporation  shall give
written notice, by first-class mail,  postage prepaid,  addressed to the Holders
at the  addresses of such Holders as shown on the books of the  corporation,  of
the date on which  (aa) the  books of the  corporation  shall  close or a record
shall be taken for such dividend,  distribution or subscription  rights, or (bb)
such reorganization, reclassification, consolidation, merger, sale, dissolution,
liquidation  or winding up shall take  place,  as the case may be.  Such  notice
shall also  specify the date as of which the  Holders of Common  Stock of record
shall  participate in such dividend,  distribution  or subscription  rights,  or
shall be  entitled  to  exchange  their  Common  Stock for  securities  or other
property deliverable upon such reorganization, reclassification,  consolidation,
merger, sale,  dissolution,  liquidation or winding up, as the case may be. Such
written  notice  shall be given at least 20 days prior to the action in question
and not less  than 20 days  prior to the  record  date or the date on which  the
corporation's transfer books are closed in respect thereto.

                  (g)  Surrender of  Convertible  Note. In order to exercise the
conversion  privilege,  the Holder of the  Convertible  Note to be  converted in
whole or in part shall  surrender  such  Convertible  Note to the Company at its
principal  office or at such other  agency  maintained  for such  purpose by the
Company,  and shall give written  notice to the Company at such office or agency
that the Holder elects to convert such  Convertible  Note or the portion thereof
specified  in said  notice.  Such  notice  shall  also  state the name or names,
together with address or addresses, in which the certificate or certificates for
shares of Common  Stock  which shall be  issuable  on such  conversion  shall be
issued. The Convertible Note surrendered for conversion shall, unless the shares
issuable  on  conversion  are to be  issued  in the same name as the name of the
original Holder, be accompanied by instruments of transfer, in form satisfactory
to the Company,  duly executed by each Holder of his duly  authorized  attorney.
After the surrender of such  Convertible  Note, as aforesaid,  the Company shall
issue and shall  deliver  at such  office  or agency to such  Holder,  or on his
written order, a certificate  or  certificates  for the number of full shares of
capital stock issuable upon the conversion of such  Convertible  Note or portion
thereof in  accordance  with the  provisions  of this  Section.  Any  fractional
interest in respect of a share arising upon such conversion  shall be settled as
provided in Subsection (c) of this Section.  In case any  Convertible  Note of a
denomination  greater than $1,000 shall be surrendered  for partial  conversion,
the Company shall pay the remaining unconverted balance in cash.

                  (h)      Fractional   Shares.  No  fractional  shares  of
Common  Stock  shall  be  issued  upon conversion of the  Convertible  Note. 
Any portion of the  Convertible  Note not  convertible  into a whole share of
Common Stock shall be paid in cash.

<PAGE>

         8.       Events  of  Default.  Each of the  following  events shall be
an Event of Default ("Event of Default") for purposes of the Convertible Note:

                  (a) Convertible  Note Terms.  The Company  defaults in the due
and punctual  performance or observance of any material  terms  contained in the
Convertible  Note,  and such  default  continues  for a period  of  thirty  (30)
consecutive  days after written  notice  thereof to the Company by any Holder of
the  Convertible  Note or Common Stock issued upon conversion of the Convertible
Note; except that any default occurring due to the failure of the Company to act
in  accordance  with Section 8(b) hereof will result in an immediate  default by
the Company  and such  default may be waived by the Holders of a majority of the
total  principal   amount  of  the  then   outstanding   Convertible   Notes  in
substantially the same form as this Convertible Note; or

                  (b)  Insolvency  Matters.  The Company makes an assignment for
the benefit of creditors, or admits in writing its inability to pay its debts as
they become due, or files a voluntary petition in bankruptcy,  or is adjudicated
a bankrupt or insolvent,  or files any petition or answer seeking for itself any
reorganization, arrangement, composition, readjustment, liquidation, dissolution
or similar relief under any present or future  statute,  law or  regulation,  or
files  any  answer  admitting  or fails to deny the  material  allegations  of a
petition filed against the Company for any such relief,  or seeks or consents to
or acquiesces in the  appointment of any trustee,  receiver or liquidator of the
Company or all or any substantial part of the properties of the Company,  or the
Company or its directors or majority stockholders take any action looking to the
dissolution or liquidation of the Company.

         9. Remedies on Default.  Upon the  occurrence of an Event of Default as
described  under  Section 8 hereof,  the Holder may (a)  declare  the  principal
amount hereof and all accrued but unpaid  interest  thereon  through the date of
the  Company's  full  payment  hereof,  to be  immediately  due and payable upon
written  notice from the Holder to the Company;  (b) exercise and enforce any or
all rights and  remedies  available  upon  default to a secured  party under the
Uniform  Commercial  Code;  (c)  exercise or enforce any or all other  rights or
remedies  available to each Holder  hereof by law or  agreement  pursuant to the
terms of the Security Agreement, against the Company or against any other person
or property.

         10.      Registration Rights.

         (a) If at any time after the date of this Convertible Note and prior to
the end of the one-year period following  complete  exercise of this Convertible
Note or __________________________,  2003, whichever occurs earlier, the Company
proposes  to  register  under  the  1933 Act  (except  by a Form S-4 or Form S-8
Registration  Statement or any successor  forms thereto) or qualify for a public
distribution under Section 3(b) of the 1933 Act, any of its securities,  it will
give written notice to all Holders of this  Convertible  Note and any Conversion
Shares of its intention to do so and, on the written  request of any such Holder
given within twenty (20) days after  receipt of any such notice  (which  request
shall specify the interest in this  Convertible  Note or the  Conversion  Shares
intended to be sold or disposed of by such Holder and describe the nature of any
proposed  sale or other  disposition  thereof),  the  Company  will use its best
efforts to cause all such  Conversion  Shares,  the  Holders of which shall have
requested the  registration  or  qualification  thereof,  to be included in such
registration statement proposed to be filed by the Company;  provided,  however,
that if a greater number of Conversion  Shares is offered for  participation  in
the proposed offering than in the reasonable opinion of the managing underwriter
of the proposed  offering can be accommodated  without  adversely  affecting the

<PAGE>

proposed  offering,  then the amount of Conversion Shares proposed to be offered
by such Holders for  registration,  as well as the number of  securities  of any
other  selling  shareholders   participating  in  the  registration,   shall  be
proportionately  reduced  to  a  number  deemed  satisfactory  by  the  managing
underwriter.

         (b)  Further,  on a one-time  basis  only,  provided  Form S-3, or such
successor  form  as may be  adopted,  is  available,  during  the  term  of this
Convertible  Note,  upon  request by the  Holder or  Holders  of a  majority  in
interest  of (i) this  Convertible  Note,  (ii)  any  Convertible  Notes  issued
pursuant to the offering described in the Company's Private Placement Memorandum
dated April 9, 1997, as restated on October ____, 1997, and (iii) any Conversion
Shares underlying all such Convertible Notes, the Company will promptly take all
necessary  steps to register or qualify,  under the 1933 Act and the  securities
laws of such  states as the  Holders  may  reasonably  request,  such  number of
Conversion  Shares issued and to be issued upon exercise all of such Convertible
Notes  requested  by such Holders in their  request to the Company.  The Company
shall keep effective and maintain any registration, qualification, notification,
or approval specified in this Paragraph (b) for such period as may be reasonably
necessary  for such  Holder or  Holders  of such  Conversion  Shares to  dispose
thereof and from time to time shall amend or supplement the  prospectus  used in
connection  therewith to the extent necessary in order to comply with applicable
law. Notwithstanding the foregoing, if in the reasonable opinion of the managing
underwriter  of any  proposed  financing  by the Company a  registration  of the
Conversion  Shares  pursuant to this  Paragraph (b) would  adversely  affect the
proposed  financing,  then the Company  shall not be  obligated  to register any
portion of the  Conversion  Shares until such time as the  managing  underwriter
deems it would no longer adversely impact the proposed financing.

         (c) With respect to each  inclusion  of  securities  in a  registration
statement  pursuant to this  Section 10, the  Company  shall bear the  following
fees,  costs, and expenses:  all  registration,  filing and NASD fees,  printing
expenses,  fees and  disbursements  of counsel and  accountants for the Company,
fees and  disbursements  of counsel for the  underwriter or underwriters of such
securities (if the Company is required to bear such fees and disbursements), all
internal expenses, the premiums and other costs of policies of insurance against
liability  arising out of the public offering,  and legal fees and disbursements
and other expenses of complying with state securities laws of any  jurisdictions
in which the  securities to be offered are to be  registered or qualified.  Fees
and  disbursements  of special counsel and accountants for the selling  Holders,
underwriting  discounts and commissions,  and transfer taxes for selling Holders
and any other expenses relating to the sale of securities by the selling Holders
not expressly included above shall be borne by the selling Holders;

         (d)  The  Company  hereby  indemnifies  each  of the  Holders  of  this
Convertible Note and of any Conversion  Shares,  and the officers and directors,
if any, who control such  Holders,  within the meaning of Section 15 of the 1933
Act,  against all losses,  claims,  damages,  and liabilities  caused by (1) any
untrue statement or alleged untrue statement of a material fact contained in any
Registration  Statement or  Prospectus  (and as amended or  supplemented  if the
Company shall have furnished any amendments thereof or supplements thereto), any
Preliminary  Prospectus or any state securities law filings; (2) any omission or
alleged  omission to state therein a material fact required to be stated therein
or necessary to make the  statements  therein not  misleading  except insofar as
such losses,  claims,  damages or liabilities are caused by any untrue statement
or omission contained in information furnished in writing to the Company by such
Holder expressly for use therein;  and each such Holder by its acceptance hereof

<PAGE>

severally  agrees that it will indemnify and hold harmless the Company,  each of
its officers who signs such Registration Statement, and each person, if any, who
controls  the  Company,  within the meaning of Section 15 of the 1933 Act,  with
respect to losses, claims, damages or liabilities which are caused by any untrue
statement  or omission  contained  in  information  furnished  in writing to the
Company by such Holder expressly for use therein.

         11.  Modification and Waiver. No purported  amendment,  modification or
waiver of any  provision  hereof shall be binding  unless set forth in a written
document  signed by the Company and the Holder of the  Convertible  Note (in the
case of amendments or  modifications)  or by the party to be charged thereby (in
the case of waivers). Any waiver shall be limited to the provision hereof in the
circumstances  or events  specifically  made subject  thereto,  and shall not be
deemed a waiver of any other term  hereof or of the same  circumstance  or event
upon any reoccurrence thereof.

         12. Notices. All notices,  requests,  consents and other communications
required or permitted  hereunder shall be in writing and shall be deemed to have
been given,  when  received,  if  personally  delivered  or  delivered by telex,
telegram or telecopy,  or five (5) days after  depositing in the U.S.  Mails for
delivery by first class mail,  postage  prepaid and addressed as provided below,
(a) if to any Holder of the  Convertible  Note,  addressed to such Holder at its
address as shown on the books of the Company,  or at such other  address as such
Holder may specify by written notice to the Company, or (b) if to the Company at
1419 Energy Park Drive,  St. Paul, MN 55108,  Attention:  President,  or at such
other address as the Company may specify by written notice to the Holders of the
Convertible Note or Common Stock issued upon conversion of the Convertible Note.

         13. Successors  and Assigns.  All the terms and provisions of the
Convertible  Note shall be binding upon and inure to the benefit of and be
enforceable  by the  respective  successors and assigns of the Company and
each Holder of the Convertible Note, whether or not so expressed.

         14. Applicable  Law.  The  laws  of  the  State  of  Minnesota  shall
govern  the  validity  of  the Convertible  Note, the  construction  of its 
terms and the  interpretation  of the rights and duties of the Company and each
Holder of the Convertible Note.

         15. Waiver of Demand,  Presentment  and Notice of  Dishonor.  The  
undersigned  and each  endorser or guarantor hereof hereby waives demand, 
presentment, protest, notice of protest and notice of dishonor.

         16.  Corporate  Obligation.  No recourse under or upon any  obligation,
covenant or agreement contained in this Convertible Note, or for any claim based
hereon or  otherwise  in respect  hereof,  shall be had  against  any  promoter,
subscriber to shares, incorporator,  shareholder, officer, or director, as such,
past, present or future, of the Company or of any successor corporation,  either
directly or through the Company or any successor or  corporation  or through any
trustee,  receiver, or any other person,  whether by virtue of any constitution,
statute,  or rule of law, or by the  enforcement of any assessment or penalty or
otherwise, except as expressly agreed to by the party charged.


<PAGE>



         IN WITNESS WHEREOF,  the Company has caused this Convertible Note to be
signed by its duly authorized officer as of the date first written above.


                                  Quantech Ltd.


                                  By_____________________________________
                                  Its____________________________________



<PAGE>





                DATES AND PRINCIPAL AMOUNTS OF CONVERTIBLE NOTES

                       ISSUED TO AFFILIATES OF REGISTRANT





AFFILIATE                                 DATE OF ISSUE              AMOUNT


Gregory G. Freitag                        June 3, 1997            $  10,000

James F. Lyons                            June 3, 1997            $  25,000

Edward E. Strickland                      June 3, 1997            $  25,000

Strickland Family Limited Partnership     June 3, 1997            $  25,000

Robert Case                               June 30, 1997           $  50,000







The securities  represented by this certificate has not been  registered,  under
either the Securities Act of 1933, as amended,  or applicable  state  securities
laws. They may not be sold, offered for sale or transferred in the absence of an
effective  registration  under the Securities  Act of 1933, as amended,  and the
applicable state  securities laws or an opinion of counsel  satisfactory in form
and substance to counsel for the Company that such  transaction  will not result
in a prohibited transaction under the Securities Act of 1933, as amended, or the
applicable state securities laws.

                                                                  WJ-_________
                                     WARRANT

             TO PURCHASE ___________________ SHARES OF COMMON STOCK
                                       OF
                                  Quantech Ltd.

         THIS CERTIFIES THAT, for good and valuable consideration _____________
_____________________________________,  (the  "Investor")  or  his,  her  or its
registered  assigns,  is entitled to subscribe  for and purchase  from  Quantech
Ltd., a Minnesota  corporation  (the  "Company"),  at any time after the Warrant
Exercise  Price  has  been  determined  as set  forth  below  to and  including,
________________,   2002,____________________  (________________________)  fully
paid and nonassessable  shares of the Common Stock of the Company at the Warrant
Exercise Price (defined below),  subject to the antidilution  provisions of this
Warrant.  Reference  is  made to  this  Warrant  in the  Subscription  and  Loan
Agreement  executed  by the  Investor  and the  Company's  Confidential  Private
Placement  Memorandum  dated April 9, 1997,  as restated on October  ____,  1997
("Memorandum").

         The "Warrant  Exercise  Price" shall be equal to the lesser of (a) $.25
per share,  (b) the average of the last sale price of the Company's Common Stock
for each of the 10 consecutive  trading days immediately  preceding December 20,
1997 or (c) the price per share determined as follows:  (i) 80% of the per share
price at which any  shares of the  Company's  Common  Stock are sold in the next
private or public equity  financing with gross  proceeds of at least  $5,000,000
(the  "Financing")  which is prior to the closing of a Sale, Merger or Licensing
(as such terms are defined below), or (ii) in the case of any sale or conveyance
to  another  corporation  of the  property  of the  Company  as an  entirety  or
substantially  as an entirety for cash ("Sale") which is prior to the closing of
a  Financing,  Merger  or  Licensing,  80% of the per  share  consideration  the
shareholders  of the  Company  would be  entitled  to  receive  if  there  was a
distribution  to  the   shareholders   (assuming  the  exercise  of  outstanding
"in-the-money"  options and warrants,  including  this Warrant) of proceeds from
the Sale, or (iii) in case of any  consolidation  or merger to which the Company
is a party or any  statutory  exchange of  securities  with another  corporation
(including  any  exchange  effected  in  connection  with a  merger  of a  third
corporation  into the  Company)  ("Merger")  which is prior to the  closing of a
Financing,  Sale or Licensing,  80% of the average of the last sale price of the
Company's Common Stock for the 20 consecutive trading days immediately following
the public  announcement  of the  Merger,  or (iv) in the case of any  licensing
arrangement in connection with which the Company provides the right to control a
significant  portion of its business and receives  cash in excess of  $5,000,000
upon execution of such arrangement  ("Licensing")  which is prior to the closing
of a Financing, Sale or Merger, 80% of the average of the last sale price of the
Company's Common Stock for the 20 consecutive trading days immediately following
the  public  announcement  of the  Licensing,  or (v) in the  event  there is no
Financing, Sale, Merger or Licensing prior to June 1, 1998, the Warrant Exercise


<PAGE>

Price shall be the lower of (A) 80% of the average of the last sale price of the
Company's  Common Stock for each of the 20 consecutive  trading days immediately
preceding  the  issuance  of this  Warrant or (B) 80% of the average of the last
sale price of the Company's Common Stock for each of the 20 consecutive  trading
days prior to June 1, 1998. The number of shares subject to this Warrant and the
per share prices to which reference is made in determining the Warrant  Exercise
Price Warrant shall be proportionally  adjusted to reflect any stock dividend or
any subdivision or combination of shares  effected by the Company  subsequent to
the date of issuance of this Warrant.

         The shares  which may be acquired  upon  exercise  of this  Warrant are
referred to herein as the "Warrant  Shares." As used herein,  the term  "Holder"
means the  Investor,  any party who  acquires all or a part of this Warrant as a
registered  transferee of the  Investor,  or any record holder or holders of the
Warrant  Shares  issued  upon  exercise,  whether  in whole  or in part,  of the
Warrant.  The term "Common  Stock" means and  includes the  Company's  presently
authorized  common stock,  par value $.01 per share,  and shall also include any
capital stock of any class of the Company  hereafter  authorized which shall not
be limited to a fixed sum or  percentage in respect of the rights of the holders
thereof to  participate in dividends or in the  distribution  of assets upon the
voluntary or involuntary liquidation, dissolution, or winding up of the Company.

         This  Warrant  is  subject  to  the  following  provisions,  terms  and
conditions:

     1. Exercise; Transferability.

         (a) The rights  represented  by this  Warrant may be  exercised  by the
Holder hereof,  in whole or in part (but not as to a fractional  share of Common
Stock), by written notice of exercise (in the form attached hereto) delivered to
the Company at the principal  office of the Company  prior to the  expiration of
this Warrant and  accompanied or preceded by the surrender of this Warrant along
with a check in payment of the Warrant Exercise Price for such shares.

         (b) This  Warrant  is  transferable  in whole  or in part,  subject  to
applicable  federal and state securities laws and regulations.  This Warrant may
not be sold,  transferred,  assigned,  hypothecated  or divided into two or more
Warrants of smaller denominations, nor may any Warrant shares issued pursuant to
exercise of this Warrant be transferred, except as provided in Section 7 hereof.

     2.  Exchange  and  Replacement.  Subject to  Sections 1 and 7 hereof,  this
Warrant is exchangeable  upon the surrender  hereof by the Holder to the Company
at its  office  for new  Warrants  of like  tenor and date  representing  in the
aggregate  the right to  purchase  the  number  of  Warrant  Shares  purchasable
hereunder,  each of such new  Warrants to represent  the right to purchase  such
number of Warrant Shares (not to exceed the aggregate  total number  purchasable
hereunder) as shall be  designated by the Holder at the time of such  surrender.
Upon  receipt by the Company of evidence  reasonably  satisfactory  to it of the
loss, theft,  destruction,  or mutilation of this Warrant, and, in case of loss,
theft or destruction,  of indemnity or security  reasonably  satisfactory to it,
and upon surrender and cancellation of this Warrant,  if mutilated,  the Company
will make and deliver a new Warrant of like tenor, in lieu of this Warrant. This
Warrant shall be promptly  canceled by the Company upon the surrender  hereof in
connection with any exchange or replacement. The Company shall pay all expenses,
taxes (other than stock transfer taxes), and other charges payable in connection
with the  preparation,  execution,  and  delivery of  Warrants  pursuant to this
Section 2.


<PAGE>

     3. Issuance of the Warrant Shares.

         (a) The Company agrees that the shares of Common Stock purchased hereby
shall be and are deemed to be issued to the  Holder as of the close of  business
on the date on which this Warrant  shall have been  surrendered  and the payment
made for such Warrant Shares as aforesaid. Subject to the provisions of the next
section,  certificates for the Warrant Shares so purchased shall be delivered to
the Holder within a reasonable  time, not exceeding  fifteen (15) days after the
rights  represented  by this Warrant shall have been so exercised,  and,  unless
this Warrant has expired,  a new Warrant  representing the right to purchase the
number of Warrant  Shares,  if any, with respect to which this Warrant shall not
then have been exercised shall also be delivered to the Holder within such time.

         (b)  Notwithstanding the foregoing,  however,  the Company shall not be
required to deliver any  certificate  for Warrant  Shares upon  exercise of this
Warrant except in accordance  with  exemptions  from the  applicable  securities
registration  requirements or registrations  under  applicable  securities laws.
Nothing  herein,  however,  shall  obligate the Company to effect  registrations
under  federal or state  securities  laws,  except as  provided in Section 9. If
registrations  are not in effect and if exemptions  are not  available  when the
Holder  seeks to  exercise  the  Warrant,  the Warrant  exercise  period will be
extended,  if need be, to prevent the Warrant from expiring,  until such time as
either  registrations  become  effective or exemptions  are  available,  and the
Warrant shall then remain  exercisable for a period of at least 30 calendar days
from  the  date  the  Company  delivers  to the  Holder  written  notice  of the
availability of such  registrations or exemptions.  The Holder agrees to execute
such documents and make such representations,  warranties, and agreements as may
be required solely to comply with the exemptions relied upon by the Company,  or
the registrations made, for the issuance of the Warrant Shares.

     4.  Covenants of the  Company.  The Company  covenants  and agrees that all
Warrant Shares will, upon issuance,  be duly authorized and issued,  fully paid,
nonassessable,  and free from all taxes,  liens, and charges with respect to the
issue thereof.  The Company further  covenants and agrees that during the period
within  which the rights  represented  by this  Warrant  may be  exercised,  the
Company will at all times have  authorized and reserved for the purpose of issue
or transfer upon exercise of the subscription rights evidenced by this Warrant a
sufficient  number of shares of Common  Stock to provide for the exercise of the
rights represented by this Warrant.

     5. Antidilution Adjustments.  The provisions of this Warrant are subject to
adjustment as provided in this Section 5.

         (a) After the  determination of the initial Warrant Exercise Price, the
Warrant Exercise Price shall be adjusted from time to time such that in case the
Company shall hereafter:

          (i) pay any dividends on any class of stock of the Company  payable in
          Common Stock or securities convertible into Common Stock;

          (ii)  subdivide  its then  outstanding  shares of Common  Stock into a
          greater number of shares; or

          (iii) combine  outstanding shares of Common Stock, by reclassification
          or otherwise;

<PAGE>

then, in any such event, the Warrant Exercise Price in effect  immediately prior
to  such  event  shall  (until  adjusted  again  pursuant  hereto)  be  adjusted
immediately  after such event to a price  (calculated  to the nearest full cent)
determined  by  dividing  (a) the number of shares of Common  Stock  outstanding
immediately  prior  to such  event,  multiplied  by the  then  existing  Warrant
Exercise  Price,  by (b) the total number of shares of Common Stock  outstanding
immediately  after such event  (including the maximum number of shares of Common
Stock issuable in respect of any securities  convertible into Common Stock), and
the resulting  quotient shall be the adjusted  Warrant Exercise Price per share.
An  adjustment  made  pursuant  to  this  Subsection   shall  become   effective
immediately  after the record date in the case of a dividend or distribution and
shall become  effective  immediately  after the effective  date in the case of a
subdivision,  combination or reclassification.  If, as a result of an adjustment
made  pursuant  to  this  Subsection,  the  Holder  of  any  Warrant  thereafter
surrendered  for exercise shall become entitled to receive shares of two or more
classes of capital  stock or shares of Common Stock and other  capital  stock of
the Company,  the Board of Directors (whose  determination  shall be conclusive)
shall determine the allocation of the adjusted Warrant Exercise Price between or
among  shares of such  classes  of capital  stock or shares of Common  Stock and
other capital stock. All calculations under this Subsection shall be made to the
nearest  cent or to the  nearest  1/100 of a share,  as the case may be.  In the
event  that at any time as a  result  of an  adjustment  made  pursuant  to this
Subsection,  the holder of any Warrant thereafter surrendered for exercise shall
become entitled to receive any shares of the Company other than shares of Common
Stock,  thereafter the Warrant Exercise Price of such other shares so receivable
upon exercise of any Warrant shall be subject to adjustment from time to time in
a manner and on terms as nearly equivalent as practicable to the provisions with
respect to Common Stock contained in this Section.

         (b) Upon each  adjustment  of the Warrant  Exercise  Price  pursuant to
Section 5(a) above, the Holder of each Warrant shall  thereafter  (until another
such  adjustment) be entitled to purchase at the adjusted Warrant Exercise Price
the  number of  shares,  calculated  to the  nearest  full  share,  obtained  by
multiplying  the number of shares  specified  in such  Warrant (as adjusted as a
result of all adjustments in the Warrant  Exercise Price in effect prior to such
adjustment) by the Warrant Exercise Price in effect prior to such adjustment and
dividing the product so obtained by the adjusted Warrant Exercise Price.

         (c) In case of any  consolidation  or merger to which the  Company is a
party  or in case of any  sale  or  conveyance  to  another  corporation  of the
property of the Company as an entirety or  substantially  as an entirety,  or in
the case of any  statutory  exchange  of  securities  with  another  corporation
(including  any  exchange  effected  in  connection  with a  merger  of a  third
corporation into the Company), there shall be no adjustment under Subsection (a)
of this Section above but the Holder of each Warrant then outstanding shall have
the right  thereafter to convert such Warrant into the kind and amount of shares
of stock and other  securities  and  property  which he would have owned or have
been entitled to receive immediately after such consolidation, merger, statutory
exchange,  sale or conveyance had such Warrant been converted  immediately prior
to the effective date of such consolidation, merger, statutory exchange, sale or
conveyance and in any such case, if necessary,  appropriate  adjustment shall be
made in the application of the provisions set forth in this Section with respect
to the rights and interests thereafter of any Holders of the Warrant, to the end
that the provisions set forth in this Section shall  thereafter  correspondingly
be made applicable, as nearly as may reasonably be, in relation to any shares of
stock and other securities and property  thereafter  deliverable on the exercise
of the Warrant.  The  provisions of this  Subsection  shall  similarly  apply to
successive consolidations, mergers, statutory exchanges, sales or conveyances.

<PAGE>

         (d) Upon any adjustment of the Warrant Exercise Price, then and in each
such case, the Company shall give written notice thereof,  by first-class  mail,
postage  prepaid,  addressed to the Holder as shown on the books of the Company,
which  notice  shall  state  the  Warrant  Exercise  Price  resulting  from such
adjustment  and the  increase  or  decrease,  if any, in the number of shares of
Common  Stock  purchasable  at such price  upon the  exercise  of this  Warrant,
setting forth in reasonable  detail the method of calculation and the facts upon
which such calculation is based.

     6. No Voting  Rights.  This  Warrant  shall not  entitle  the Holder to any
voting rights or other rights as a shareholder of the Company.

     7. Notice of Transfer of Warrant or Resale of the Warrant Shares.

         (a) Subject to the sale, assignment,  hypothecation,  or other transfer
restrictions set forth in Section 1 hereof,  the Holder,  by acceptance  hereof,
agrees to give written notice to the Company before transferring this Warrant or
transferring any Warrant Shares of such Holder's  intention to do so, describing
briefly  the manner of any  proposed  transfer.  Promptly  upon  receiving  such
written  notice,  the Company  shall  present  copies  thereof to the  Company's
counsel. If in the opinion of such counsel the proposed transfer may be effected
without  registration or  qualification  (under any federal or state  securities
laws), the Company, as promptly as practicable,  shall notify the Holder of such
opinion,  whereupon  the Holder shall be entitled to transfer this Warrant or to
dispose of Warrant Shares  received upon the previous  exercise of this Warrant,
all in  accordance  with the terms of the notice  delivered by the Holder to the
Company;  provided that an appropriate legend may be endorsed on this Warrant or
the certificates for such Warrant Shares  respecting  restrictions upon transfer
thereof necessary or advisable in the opinion of counsel and satisfactory to the
Company to prevent further transfers which would be in violation of Section 5 of
the  Securities  Act of 1933, as amended (the "1933 Act") and  applicable  state
securities  laws;  and  provided  further  that the  prospective  transferee  or
purchaser   shall  execute  such   documents  and  make  such   representations,
warranties,  and  agreements  as may be  required  solely  to  comply  with  the
exemptions  relied upon by the Company for the  transfer or  disposition  of the
Warrant or Warrant Shares.

         (b) If in the opinion of the counsel referred to in this Section 7, the
proposed  transfer  or  disposition  of  this  Warrant  or such  Warrant  Shares
described  in the written  notice  given  pursuant to this  Section 7 may not be
effected  without  registration or qualification of this Warrant or such Warrant
Shares the Company shall promptly give written notice thereof to the Holder, and
the Holder  will limit its  activities  in respect to such as, in the opinion of
such counsel, are permitted by law.

     8.  Fractional  Shares.  Fractional  shares  shall not be  issued  upon the
exercise of this Warrant, but in any case where the holder would, except for the
provisions  of this  Section,  be entitled  under the terms  hereof to receive a
fractional  share, the Company shall,  upon the exercise of this Warrant for the
largest  number of whole  shares then called for, pay a sum in cash equal to the
sum of (a) the excess, if any, of the Market Price of such fractional share over
the  proportional  part  of the  Warrant  Exercise  Price  represented  by  such
fractional  share,  plus (b) the proportional part of the Warrant Exercise Price
represented by such  fractional  share.  For purposes of this Section,  the term
"Market  Price"  with  respect to shares of Common  Stock of any class or series
means:

<PAGE>

         (i) if the Company's Common Stock is traded on an exchange or is quoted
         on the Nasdaq  National  Market,  then the average closing or last sale
         prices,   respectively,   reported  for  the  ten  (10)  business  days
         immediately preceding exercise of the Warrant,

         (ii) if the  Company's  Common Stock is not traded on an exchange or on
         the Nasdaq  National Market but is traded on the Nasdaq SmallCap Market
         or other  over-the-counter  market,  then the  average  closing bid and
         asked  prices  reported  for the ten  (10)  business  days  immediately
         preceding the exercise of the Warrant, and

         (iii) if the Company's  Common Stock is not traded on an exchange,  the
         Nasdaq  National  Market,  or  the  Nasdaq  SmallCap  Market  or  other
         over-the-counter  market,  then the price  established in good faith by
         the Company's Board of Directors.

     9. Registration Rights.

         (a) If at any time after this Warrant becomes  exercisable and prior to
the end of the one-year period  following  complete  exercise of this Warrant or
__________________________, 2003, whichever occurs earlier, the Company proposes
to register  under the 1933 Act  (except by a Form S-4 or Form S-8  Registration
Statement or any successor  forms thereto) or qualify for a public  distribution
under Section 3(b) of the 1933 Act, any of its securities,  it will give written
notice to all Holders of this Warrant, any Warrants issued pursuant to Section 2
and/or  Section 3(a) hereof,  and any Warrant  Shares of its  intention to do so
and, on the written  request of any such Holder  given  within  twenty (20) days
after  receipt of any such notice  (which  request shall specify the interest in
this  Warrant or the Warrant  Shares  intended to be sold or disposed of by such
Holder  and  describe  the  nature  of any  proposed  sale or other  disposition
thereof),  the  Company  will use its best  efforts  to cause  all such  Warrant
Shares,   the  Holders  of  which  shall  have  requested  the  registration  or
qualification thereof, to be included in such registration statement proposed to
be filed by the Company; provided,  however, that if a greater number of Warrant
Shares  is  offered  for  participation  in the  proposed  offering  than in the
reasonable  opinion of the managing  underwriter of the proposed offering can be
accommodated without adversely affecting the proposed offering,  then the amount
of Warrant Shares  proposed to be offered by such Holders for  registration,  as
well as the number of securities of any other selling shareholders participating
in the  registration,  shall  be  proportionately  reduced  to a  number  deemed
satisfactory by the managing underwriter.

         (b)  Further,  on a one-time  basis  only,  provided  Form S-3, or such
successor form as may be adopted, is available, during the term of this Warrant,
upon  request by the Holder or Holders  of a majority  in  interest  of (i) this
Warrant,  (ii) any  Warrants  issued  pursuant to Section 2 and/or  Section 3(a)
hereof  (iii) any  Warrants  issued  pursuant to the  offering  described in the
Memorandum,  and (iv) any  Warrant  Shares  underlying  all such  Warrants,  the
Company will promptly take all necessary steps to register or qualify, under the
1933 Act and the  securities  laws of such states as the Holders may  reasonably
request, such number of Warrant Shares issued and to be issued upon exercise all
of such Warrants requested by such Holders in their request to the Company.  The

<PAGE>

Company  shall keep  effective  and  maintain any  registration,  qualification,
notification, or approval specified in this Paragraph (b) for such period as may
be  reasonably  necessary  for such Holder or Holders of such Warrant  Shares to
dispose  thereof and from time to time shall amend or supplement  the prospectus
used in  connection  therewith  to the extent  necessary in order to comply with
applicable law.  Notwithstanding the foregoing,  if in the reasonable opinion of
the managing underwriter of any proposed financing by the Company a registration
of the Warrant Shares pursuant to this Paragraph (b) would adversely  affect the
proposed  financing,  then the Company  shall not be  obligated  to register any
portion of the Warrant Shares until such time as the managing  underwriter deems
it would no longer adversely impact the proposed financing.

         (c) With respect to each  inclusion  of  securities  in a  registration
statement pursuant to this Section 9, the Company shall bear the following fees,
costs, and expenses: all registration,  filing and NASD fees, printing expenses,
fees and  disbursements  of counsel and  accountants  for the Company,  fees and
disbursements  of counsel for the underwriter or underwriters of such securities
(if the Company is required to bear such fees and  disbursements),  all internal
expenses,  the  premiums  and  other  costs of  policies  of  insurance  against
liability  arising out of the public offering,  and legal fees and disbursements
and other expenses of complying with state securities laws of any  jurisdictions
in which the  securities to be offered are to be  registered or qualified.  Fees
and  disbursements  of special counsel and accountants for the selling  Holders,
underwriting  discounts and commissions,  and transfer taxes for selling Holders
and any other expenses relating to the sale of securities by the selling Holders
not expressly included above shall be borne by the selling Holders;

         (d) The Company hereby  indemnifies each of the Holders of this Warrant
and of any Warrant Shares,  and the officers and directors,  if any, who control
such  Holders,  within the  meaning of Section 15 of the 1933 Act,  against  all
losses,  claims,  damages, and liabilities caused by (1) any untrue statement or
alleged  untrue  statement  of a material  fact  contained  in any  Registration
Statement or  Prospectus  (and as amended or  supplemented  if the Company shall
have furnished any amendments thereof or supplements  thereto),  any Preliminary
Prospectus  or any state  securities  law  filings;  (2) any omission or alleged
omission  to state  therein a material  fact  required  to be stated  therein or
necessary to make the statements  therein not misleading  except insofar as such
losses,  claims,  damages or liabilities  are caused by any untrue  statement or
omission  contained in  information  furnished in writing to the Company by such
Holder expressly for use therein;  and each such Holder by its acceptance hereof
severally  agrees that it will indemnify and hold harmless the Company,  each of
its officers who signs such Registration Statement, and each person, if any, who
controls  the  Company,  within the meaning of Section 15 of the 1933 Act,  with
respect to losses, claims, damages or liabilities which are caused by any untrue
statement  or omission  contained  in  information  furnished  in writing to the
Company by such Holder expressly for use therein.

     IN WITNESS  WHEREOF,  Quantech Ltd. has caused this Warrant to be signed by
its duly authorized officer and this Warrant to be dated ______________________,
1997.

                                 "Company"

                                  Quantech Ltd.


                                  By_________________________________
                                    Gregory G. Freitag, Chief Financial Officer
                                    and Chief Operating Officer



<PAGE>


To:  Quantech Ltd.



NOTICE OF EXERCISE OF WARRANT --        To Be Executed by the Registered Holder
- -----------------------------           in Order to Exercise the Warrant


The undersigned  hereby  irrevocably  elects to exercise the attached Warrant to
purchase for cash, _________________ of the shares issuable upon the exercise of
such Warrant,  and requests that  certificates  for such shares (together with a
new Warrant to purchase the number of shares, if any, with respect to which this
Warrant is not exercised) shall be issued in the name of


                               ------------------------------------------------
                               (Print Name)


Please insert social security
or other identifying number
of registered holder of
certificate (______________)    Address:

                                ------------------------------------------------

                                ------------------------------------------------


Date:  _________, 19            ________________________________
                                Signature*




*The signature on the Notice of Exercise of Warrant must  correspond to the name
as written upon the face of the Warrant in every particular  without  alteration
or  enlargement  or  any  change  whatsoever.   When  signing  on  behalf  of  a
corporation,   partnership,   trust  or  other  entity,   PLEASE  indicate  your
position(s) and title(s) with such entity.




<PAGE>





                                 ASSIGNMENT FORM


To be signed only upon authorized transfer of Warrants.

FOR VALUE RECEIVED,  the undersigned hereby sells,  assigns,  and transfers unto
______________________________________________   the  right  to   purchase   the
securities  of Quantech  Ltd. to which the within  Warrant  relates and appoints
____________________,  attorney, to transfer said right on the books of Quantech
Ltd. with full power of substitution in the premises.


Dated:___________                  _________________________________________
                                   (Signature)

                                    Address:

                                    ------------------------------------------

                                    ------------------------------------------


<PAGE>



               DATES AND AMOUNTS OF COMMON STOCK PURCHASE WARRANTS
                       ISSUED TO AFFILIATES OF REGISTRANT




                                                                        NUMBER
AFFILIATE                                      DATE OF ISSUE          OF SHARES


Gregory G. Freitag                             June 3, 1997             30,000

James F. Lyons                                 June 3, 1997             75,000

Edward E. Strickland                           June 3, 1997             75,000

Strickland Family Limited Partnership          June 3, 1997             75,000

Robert Case                                    June 30, 1997           150,000






                         Amendment to License Agreement

     This Amendment to License  Agreement,  dated as of ____ October 1997, is by
and among Applied Research Systems ARS Holding N.V. ("ARS"); Laboratoires Serono
S.A. ("LSA"), the successor in interest to Serono Diagnostic S.A. ("Diagnostic")
(ARS,  LSA and any  successor  thereof  being  collectively  referred  to as the
"Serono Companies") and Quantech Ltd. ("Quantech"), the successor in interest to
Spectrum Diagnostics, S.p.A. ("Spectrum").

RECITALS:

A.   The Serono  Companies  and Quantech are parties to the License,  Sublicense
     and Purchase Agreement dated November 7th, 1991, attached as Exhibit A (the
     "License Agreement").

B.   Section 2 (a) (i) of the License  Agreement  reserves from the scope of the
     license granted to Spectrum thereunder,  among other reservations,  a right
     to develop and  commercialize  the SPR  technology  for the  development of
     products to be marketed in the name of the Serono  Companies  and/or Serono
     Affiliates (the "SPR License Reservation").

C.   Section 2 (d) of the License Agreement sets forth a series of benchmarks of
     aggregate  payments  (the  "Minimum  Royalties")  and  Section  4(b) of the
     License Agreement sets forth sublicense,  assignment and transfer royalties
     (the "Transfer Royalties").

D.   Section 2 (e) of the  License  Agreement  grants the Serono  Companies  and
     Serono  Affiliates  the  right to  demand a  royalty-free  right to use any
     technology  Spectrum  has  developed  with  respect to SPR (the "Grant Back
     License"), subject to certain reservations.

E.   Upon an Event of Default, Section 10 of the License Agreement (the "Default
     Provision")  provides  that the license  rights  granted to Spectrum  shall
     terminate and revert back to the Serono Companies.

F.   The Serono  Companies  and  Quantech  wish to amend and restate the License
     Agreement  as  it  concerns  the  SPR  License  Reservation,   the  Minimum
     Royalties,  the Transfer Royalties, the Grant Back License, and the Default
     Provision.

In consideration of the agreements  contained herein and other good and valuable
consideration,  the  sufficiency  of which is hereby  acknowledged,  the parties
agree as follows:

1.   Definitions.  All of the defined terms in the License  Agreement shall have
     the same meanings in this Amendment to License Agreement.

<PAGE>

2.   SPR License  Reservation.  Upon Payment to the Serono Companies pursuant to
     Section  2(d) of the License  Agreement  of Minimum  Royalties  of at least
     $1,000,000 in the aggregate by December 31, 1997, the Serono Companies,  on
     behalf of themselves  and the Serono  Affiliates,  shall waive all of their
     rights under the SPR License Reservation.

3.   Minimum Royalties.  Section 2 (d) of the License Agreement shall be amended
     to read as follows:

          (d) Minimum Royalty: Notwithstanding anything stated in this Agreement
     to the contrary,  in the event that the royalty  payments  actually paid to
     the Serono Companies by Spectrum and/or any Third Party Transferee pursuant
     to Section 4 of this Agreement do not equal the following  amounts:  (a) at
     least $500,000 in the aggregate by December 31, 1993; (b) at least $850,000
     in the  aggregate  by December  31,  1995;  (c) at least  $1,000,00  in the
     aggregate by December 31, 1997; (d) at least  $1,150,00 in the aggregate by
     December 31, 1998; and (e) at least $1,300,000 in the aggregate by December
     31, 1999,  then each time one of the first three of such  benchmarks is not
     met, the cumulative  royalties to be paid to the Serono Companies  pursuant
     to Section  4(d) hereof  shall be  increased  by two  million  ($2,000,000)
     dollars so that if all three initial benchmarks are not met, the cumulative
     royalties  payable to the Serono Companies  pursuant to Section 4(d) hereof
     shall  be  increased  from  eighteen  million   ($18,000,000)   dollars  to
     twenty-four  million  ($24,000,000)  dollars.  Also if any one of the first
     three  of  such  benchmarks  is not  met  the  restrictions  on the  Serono
     Companies  pursuant to Section  2(a)(i) hereof that provide only the Serono
     Companies  and/or  Serono  Affiliates  shall be allowed to market  products
     developed   pursuant  to  the   retention  of  the  right  to  develop  and
     commercialize  SPR shall  lapse.  If  Spectrum  shall  receive any lump sum
     payment from any Third Party Transferee under a Transfer Agreement prior to
     December 31, 1999,  then Spectrum shall  accelerate  payment of the minimum
     royalties  set forth in this  Section  2(d) by paying up to twenty  percent
     (20%) of such lump sum  payment to the Serono  Companies.  It is  expressly
     understood  that such lump sum payments do not give rise to any  additional
     royalty obligations than would otherwise be payable to the Serono Companies
     under Section 4(b) and shall not increase any aggregate  minimum  royalties
     payable under this Section 2(d).

4.   Section 4(b)(B) of the License Agreement shall be restated to read as
     follows:

          (B) Commencing on July 2, 1996, each Third Party  Transferee shall pay
     Third  Party  Royalties  to  Diagnostic  equal  to the 15%  Royalties.  The
     obligation of Spectrum and any  subsequent  Third Party  Transferees to pay

<PAGE>

     Third Party  Royalties  to the Serono  Companies  shall  terminate  only in
     accordance with subparagraph 4(d) below.

5.   Grant Back License. Section 2(e) of the License Agreement shall be amended
     to read as follows:

          (e) Spectrum  Obligation to provide  technology:  Upon  termination of
     this  Agreement  under  Section  10 below,  the Serono  Companies  shall be
     entitled  to  a  royalty-free  license  to  make,  use  and  sell  whatever
     technology  Spectrum has developed with respect to SPR,  provided that such
     license  shall be  subject  to the terms and  conditions  of any  Preferred
     Transfer  Agreement  (as that term is defined in Section 6 of the Amendment
     to  License  Agreement)  which is in force  and  effect at the time of such
     termination of this Agreement.  This royalty-free  license shall not extend
     to any technology and/or data and/or patents which Spectrum  developed with
     a third  party  and with  respect  to which  the  third  party  retained  a
     proprietary right.


6.   Default  Provision.  Upon an Event of Default under the Default Provision,
     any  sublicense  granted by Quantech to a Preferred Third Party Transferee
     under a Preferred  Transfer  Agreement prior to the Event of Default shall
     survive  termination of the license and sublicense  rights in the Licensed
     SPR Technology granted to Spectrum and reversion of such license and 
     sublicense  rights to the Serono  Companies  under the Default  Provision,
     and such  Preferred  Transfer  Agreement  shall continue in full force and
     effect under  its  own  terms  and  conditions.  For  purposes  of  this  
     Section  6, a  "Preferred  Third  Party Transferee"  shall be any third 
     party  which had  assets of $100  million or more at the end of the third
     party's  fiscal year  immediately  preceding  the execution of such 
     Transfer  Agreement.  For purposes of this Section 6, a "Preferred
     Transfer  Agreement" shall be any Transfer  Agreement with a Preferred 
     Third Party Transferee which is approved by LSA, which approval will not 
     be unreasonably withheld.


7.   Execution in Counterparts.  This Amendment to License  Agreement may be
     executed in one or more counterparts,  all of which shall be considered
     one and the same agreement,  and shall become a binding  agreement when
     one or more  counterparts  have been signed by each party and delivered
     to the other party.




<PAGE>


IN WITNESS  WHEREOF,  the parties  hereto have duly executed and delivered  this
Amendment to License Agreement as of the date first above written.

APPLIED RESEARCH SYSTEMS            LABORATOIRES SERONO S.A.
 ARS HOLDING N.V.


___________________________         ___________________________

By_________________________         By_________________________

Its________________________         Its________________________




QUANTECH LTD.


___________________________

By Gregory G. Freitag
Its COO and CFO




<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
     THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED
     FROM THE FINANCIAL STATEMENTS CONTAINED IN THE REGISTRANT'S FORM
     10-QSB FOR THE QUARTER ENDED 9/30/97 AND IS QUALIFIED IN ITS
     ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                   1
<CURRENCY>                                     U.S. Dollars
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>               JUN-30-1998
<PERIOD-START>                  JUL-01-1997
<PERIOD-END>                    SEP-30-1997
<EXCHANGE-RATE>                           1
<CASH>                              187,154
<SECURITIES>                              0
<RECEIVABLES>                             0
<ALLOWANCES>                              0
<INVENTORY>                               0
<CURRENT-ASSETS>                    287,038
<PP&E>                              346,133
<DEPRECIATION>                      154,870
<TOTAL-ASSETS>                    3,468,109
<CURRENT-LIABILITIES>             1,988,232
<BONDS>                                   0
                     0
                               0
<COMMON>                            510,408
<OTHER-SE>                          969,469
<TOTAL-LIABILITY-AND-EQUITY>      3,468,109
<SALES>                                   0
<TOTAL-REVENUES>                          0
<CGS>                                     0
<TOTAL-COSTS>                             0
<OTHER-EXPENSES>                          0
<LOSS-PROVISION>                          0
<INTEREST-EXPENSE>                   39,376
<INCOME-PRETAX>                    (588,420)
<INCOME-TAX>                              0
<INCOME-CONTINUING>                (588,420)
<DISCONTINUED>                            0
<EXTRAORDINARY>                           0
<CHANGES>                                 0
<NET-INCOME>                       (588,420)
<EPS-PRIMARY>                          (.01)
<EPS-DILUTED>                          (.01)
        


</TABLE>


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