PE CORP
SC 13D, 1999-08-06
LABORATORY ANALYTICAL INSTRUMENTS
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                       SECURITIES AND EXCHANGE COMMISSION
                              Washington D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934

                            SpectruMedix Corporation
                            ------------------------
                                (Name of Issuer)

                        Common Stock, par value $0.00115
                        --------------------------------
                         (Title of Class of Securities)

                                     84763K
                                     ------
                                 (CUSIP Number)

                              Thomas P. Livingston
                                 PE Corporation
                                 761 Main Avenue
                           Norwalk, Connecticut 06859
                                 (203) 761-5281
                                 --------------
   (Name, Address and Telephone Number of Person Authorized to Receive Notices
                              and Communications)

                                  July 30, 1999
                                  -------------
             (Date of Event which Requires Filing of this Statement)

         If the filing person has  previously  filed a statement on Schedule 13G
to report the  acquisition  which is the subject of this  Schedule  13D,  and is
filing this Schedule  because of Rule  13d-1(b)(3)  or (4),  check the following
box. [ ]





<PAGE>


- --------------------------------------------------------------------------------
CUSIP NO. 84763K                                              PAGE 2 OF 6 PAGES

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

- --------------- ----------------------------------------------------------------
      1         NAME OF REPORTING PERSON
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                PE Corporation
                06-1534213
- --------------- ----------------------------------------------------------------
      2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                (See Instructions)

                (a) [_]
                (b) [X]
- --------------- ----------------------------------------------------------------
      3         SEC USE ONLY

- --------------- ----------------------------------------------------------------
      4         SOURCE OF FUNDS (See Instructions)
                WC

- --------------- ----------------------------------------------------------------
      5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEMS 2(D) OR 2(E) [_]

- --------------- ----------------------------------------------------------------
      6         CITIZENSHIP OR PLACE OF ORGANIZATION
                Delaware

- ----------------------------- -------- -----------------------------------------
                                 7     SOLE VOTING POWER
                                       800,000
          NUMBER OF
           SHARES             -------- -----------------------------------------
        BENEFICIALLY             8     SHARED VOTING POWER
          OWNED BY                     0
            EACH
         REPORTING            -------- -----------------------------------------
           PERSON                9     SOLE DISPOSITIVE POWER
            WITH                       800,000

                              -------- -----------------------------------------
                                 10    SHARED DISPOSITIVE POWER
                                       0

- --------------- ----------------------------------------------------------------
      11        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                800,000

- --------------- ----------------------------------------------------------------
      12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
                SHARES (See Instructions) [_]

- --------------- ----------------------------------------------------------------
      13        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                18.5%

- --------------- ----------------------------------------------------------------
      14        TYPE OF REPORTING PERSON (See Instructions)
                CO
- --------------- ----------------------------------------------------------------



<PAGE>
                                                                     Page 3 of 6


ITEM 1.  SECURITY AND ISSUER.

         The class of equity  securities  to which this  Schedule 13D relates is
the  Common  Stock,  par  value  $0.00115,  of  SpectruMedix   Corporation  (the
"Company")  which may be acquired  upon  conversion  of the  Company's  Series A
Preferred Stock. The address of the principal  executive  offices of the Company
is 2124 Old Gatesbury Road, State College, Pennsylvania 16803.

ITEM 2.  IDENTITY AND BACKGROUND

         The name of the person  filing this Schedule 13D is PE  Corporation,  a
Delaware corporation (the "Reporting Person").  The Reporting Person's principal
office  address and the address of its  principal  business is 761 Main  Avenue,
Norwalk,  Connecticut  06859.  The  Reporting  Person's  businesses  are  the PE
Biosystems Group and the Celera Genomics Group.

         The PE Biosystems Group is engaged in:

         o  research, development, manufacture, sale and support of instrument
            systems, reagents and software for the life sciences industry; and

         o  related consulting and contract research and development services.

         The Celera Genomics Group is engaged in:

         o  generation,  sale and  support of genomic  information  and  related
            information management and analysis software;

         o  discovery, validation  and licensing of  proprietary  gene products,
            genetic markers and information concerning genetic variability; and

         o  related consulting and contract research and development services.

         The name,  address,  present  principal  occupation or employment,  and
citizenship of each director and executive  officer of the Reporting  Person are
set forth on Schedule I hereto and are incorporated herein by reference.

         During the past five years,  neither the  Reporting  Person nor, to the
knowledge of the Reporting Person,  any of its directors or executive  officers:
(i) has been convicted in a criminal proceeding (excluding traffic violations or
similar misdemeanors) or (ii) was a party to a civil proceeding of a judicial or
administrative body of competent jurisdiction and as a result of such proceeding
was or is  subject  to a  judgment,  decree  or  final  order  enjoining  future
violations  of, or prohibiting  or mandating  activities  subject to, federal or
state securities laws or finding any violation with respect to such laws.



<PAGE>
                                                                     Page 4 of 6


ITEM 3.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

         The Reporting  Person used funds from its working capital in the amount
of $2,000,000 to purchase 2,000 shares of the Company's Series A Preferred Stock
which,  as described in Item 5 below,  is  convertible  into Common Stock of the
Company.

ITEM 4.  PURPOSE OF TRANSACTION

         On July 30, 1999, the Reporting Person entered into a License Agreement
concerning  certain  patents and technology and a Consulting  Agreement with the
Company.  In connection with the License Agreement,  the Reporting Person agreed
to purchase 2,000 shares of the Company's Series A Preferred Stock.

         The Reporting  Person  purchased  its shares of the Company's  Series A
Preferred Stock for investment purposes.  Except as described below, neither the
Reporting  Person nor, to the  knowledge  of the  Reporting  Person,  any of its
directors or executive  officers has any plans or proposals  with respect to the
Company which relate to or would result in any of the events described in Item 4
of Schedule 13D. The Reporting  Person intends to review the Company's  business
on a regular  basis and may in the future  propose  that the Company take one or
more of the actions described in Item 4 of Schedule 13D.

ITEM 5.  INTEREST IN SECURITIES OF THE ISSUER

         (a) Each share of the Company's Series A Preferred Stock is convertible
at any time at the option of the holder into a number of shares of the Company's
Common Stock determined by dividing $1,000 by $2.50 (subject to adjustment under
certain  circumstances).  If the  Reporting  Person  were to convert  all of its
shares of the  Company's  Series A  Preferred  Stock,  it would be  entitled  to
receive  800,000  shares of the  Company's  Common  Stock (based on a conversion
price of $2.50) which would represent  18.5% of the Company's  Common Stock then
outstanding (based on the number of shares outstanding on July 28, 1999).

         As of the  date  hereof,  neither  the  Reporting  Person  nor,  to the
knowledge of the Reporting  Person,  any of its directors or executive  officers
otherwise beneficially owns any shares of the Company's Common Stock.

         (b) If the  Reporting  Person  were to convert any of its shares of the
Company's  Series  A  Preferred  Stock,  it  would  have  sole  voting  and sole
dispositive power with respect to all shares of the Company's Common Stock which
it would receive.

         (c)  Except  as  stated  in Item 4  above,  there  have  not  been  any
transactions in the Company's Common Stock effected by or for the account of the
Reporting  Person  or, to the  knowledge  of the  Reporting  Person,  any of its
directors or executive officers, during the past 60 days.

         (d) In the event that the Reporting Person were to convert the Series A
Preferred  Stock,  no person,  other than the Reporting  Person,  would have the
right to receive or the power to direct the receipt of  dividends  from,  or the
proceeds from the sale



<PAGE>
                                                                     Page 5 of 6


of, shares of Common Stock of the Company then owned by the Reporting Person for
its own account.

         (e) Not applicable.

ITEM 6.  CONTRACTS,  ARRANGEMENTS,  UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT
         TO SECURITIES OF THE ISSUER

         Under the agreement pursuant to which the Reporting Person acquired the
Company's  Series A Preferred Stock, the Reporting Person has granted a right of
first  refusal  to the  Company  in the event  the  Reporting  Person  wishes to
transfer  any of its shares of the  Company's  Series A  Preferred  Stock or any
shares of the  Company's  Common Stock  received on  conversion  of the Series A
Preferred Stock. Except for this right, neither the Reporting Person nor, to the
knowledge of the Reporting Person,  any of its directors or executive  officers,
has any  contracts,  arrangements,  understandings  or  relationships  (legal or
otherwise)  with any person  with  respect  to any  securities  of the  Company,
including,  but not limited  to,  transfer  or voting of any  securities  of the
Company,  finder's fees, joint ventures,  loan or option  arrangements,  puts or
calls,  guarantees  of  profits,  division  of  profits or loss or the giving or
withholding of proxies.

ITEM 7.  MATERIAL TO BE FILED AS EXHIBITS

Exhibit 1    Stock Purchase Agreement, dated as of July 30, 1999, by and between
             SpectruMedix Corporation and PE Corporation.




<PAGE>
                                                                     Page 6 of 6


                                   SIGNATURES

         After reasonable  inquiry and to the best of my knowledge and belief, I
certify that the information  set forth in this statement is true,  complete and
correct.

Dated:  August 6, 1999


                                         PE CORPORATION

                                         By: /s/ THOMAS P. LIVINGSTON
                                             ------------------------------
                                         Name:   Thomas P. Livingston
                                         Title:  Assistant Secretary



<PAGE>


                                   SCHEDULE I
                                   ----------

         The following table sets forth the name, residence or business address,
present principal occupation or employment of each of the executive officers and
directors of the  Reporting  Person.  Unless  otherwise  indicated,  each person
listed  below has a business  address  care of the  Reporting  Person,  761 Main
Avenue,  Norwalk,  Connecticut,  08659,  and, unless otherwise  indicated,  each
person listed below is a citizen of the United States of America.


Directors
- ---------

Mr. Joseph F. Abely, Jr.
Retired Chairman and
Chief Executive Officer
Sea-Land Corporation

Mr. Richard H. Ayers
Retired

Mr. Jean-Luc Belingard
Chief Executive Officer
Pierre Fabre S.A.
La Michonne
F-81106 Castre Cedex
France
Mr. Belingard is a French citizen.

Prof. Robert H. Hayes
Professor

Dr. Arnold J. Levine
President and Chief Executive Officer
Rockerfeller University

Mr. Theodore E. Martin
Retired

Mr. Georges C. St. Laurent, Jr.
Principal
St. Laurent Properties

Dr. Carolyn W. Slayman
Deputy Dean for Academic and Scientific Affairs
Yale University School of Medicine

Mr. Orin R. Smith
Chairman and Chief Executive Officer
Engelhard Corporation


<PAGE>



Mr. Tony L. White
Chairman, President and
Chief Executive Officer
PE Corporation


Executive Officers
- ------------------

Dr. Noubar B. Afeyan
Senior Vice President and
Chief Business Officer

Dr. Peter Barrett
Executive Vice President
Celera Genomics Corporation
45 West Gude Drive
Rockville, Maryland 20852

Mr. Ugo D. DeBlasi
Corporate Controller
PE Corporation

Mr. Ronald D. Edelstein
Vice President
PE Corporation

Dr. Elaine J. Heron
Vice President
PE Biosystems Group
850 Lincoln Centre Drive
Foster City, California 94404

Dr. Michael W. Hunkapiller
Senior Vice President and President,
PE Biosystems Group
PE Corporation
PE Biosystems Group
850 Lincoln Centre Drive
Foster City, California 94404

Mr. Joseph E. Malandrakis
Vice President
PerSeptive Biosystems, Inc.
500 Old Connecticut Path, Suite 10
Framingham, Massachusetts 01701

Mr. William B. Sawch
Senior Vice President, General Counsel
and Secretary
PE Corporation


<PAGE>



Ms. Joyce A. Sziebert
Corporate Vice President, Human Resources
PE Biosystems Group
850 Lincoln Centre Drive
Foster City, California 94404

Dr. Craig J. Venter
Senior Vice President and President
Celera Genomics Group
PE Corporation
Celera Genomics Group
45 West Gude Drive
Rockville, Maryland 20852

Mr. Dennis L. Winger
Senior Vice President and
Chief Financial Officer
PE Corporation



<PAGE>


                                  EXHIBIT INDEX
                                  -------------

Exhibit 1    Stock Purchase Agreement, dated as of July 30, 1999, by and between
             SpectruMedix Corporation and PE Corporation.











                            STOCK PURCHASE AGREEMENT
                            ------------------------


         STOCK  PURCHASE  AGREEMENT,  dated as of July 30, 1999,  by and between
SpectruMedix  Corporation,  a  Delaware  corporation  (the  "Company"),  and  PE
Corporation, a Delaware corporation (the "Purchaser").

                              W I T N E S S E T H:
                              - - - - - - - - - -

         WHEREAS,  concurrently  herewith,  the  Company  and  The  Perkin-Elmer
Corporation, a New York corporation and wholly-owned subsidiary of the Purchaser
("Perkin-Elmer"),  are entering into that certain License  Agreement  concerning
certain patents and technology in substantially  the form set forth in EXHIBIT A
hereto (the  "License  Agreement")  and that  certain  Consulting  Agreement  in
substantially   the  form  set  forth  in  EXHIBIT  B  hereto  (the  "Consulting
Agreement"); and

         WHEREAS,  in connection with the License  Agreement,  the Purchaser has
agreed to purchase shares of preferred stock of the Company;

         NOW,  THEREFORE,  in  consideration  of the  premises and of the mutual
representations, warranties and agreements set forth herein, the Company and the
Purchaser agree as follows:

                                   ARTICLE I

                         PURCHASE AND SALE OF THE STOCK

         1.1  PURCHASE  AND SALE.  Subject to the terms and  conditions  of this
Agreement,  on the  Closing  Date,  the  Company  shall  issue  and  deliver  to
Purchaser,  and Purchaser  agrees to purchase from the Company,  2,000 shares of
authorized  but  unissued  shares of the  Series A  Preferred  Stock,  par value
$.00115 per share (the "Shares").

         1.2 PURCHASE PRICE. The purchase price for each Share is $1,000 and the
aggregate purchase price for all the Shares is Two Million Dollars ($2,000,000).
The Purchaser  shall pay the Purchase Price on the Closing Date by wire transfer
of immediately  available funds to the Company against the issuance and delivery
to Purchaser of a certificate evidencing the Shares.

         1.3 TIME AND PLACE OF TRANSACTION. The consummation of the purchase and
sale of the  Shares  (the  "Closing")  shall  take  place at the  offices of the
Company's counsel on or before July 30, 1999 at 10:00 A.M., New York time, or at
such other  place or time or  earlier  date as the  Company  and  Purchaser  may
mutually agree (the "Closing Date").

                                   ARTICLE II

                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

         As a material  inducement to Purchaser to enter into this Agreement and
purchase the Series A Preferred Stock, the Company represents and warrants that:



<PAGE>


         2.1 DUE ORGANIZATION AND QUALIFICATION; DUE AUTHORIZATION.

             (a)  The  Company  is  a  corporation  duly  incorporated,  validly
existing and in good standing under the laws of its  jurisdiction  of formation,
with full  corporate  power and authority to own, lease and operate its business
and  properties  and to carry on its business in the places and in the manner as
presently conducted or proposed to be conducted. The Company is in good standing
as a foreign  corporation in each  jurisdiction  in which the properties  owned,
leased or operated, or the business conducted, by it requires such qualification
except for any such failure,  which when taken together with all other failures,
is not likely to have a material  adverse  effect on the  business,  properties,
financial condition or results of operations of the Company (a "Material Adverse
Effect").

             (b) The Company does not own,  directly or indirectly,  any capital
stock, equity or interest in any corporation,  firm, partnership,  joint venture
or other entity.

             (c) The Company has all requisite  corporate power and authority to
execute  and  deliver  this  Agreement  and  the  Additional  Agreements  and to
consummate the  transactions  contemplated  hereby and thereby.  The Company has
taken all  corporate  action  necessary  for the  execution and delivery of this
Agreement and the Additional Agreements and the consummation of the transactions
contemplated  hereby  and  thereby,   and  this  Agreement  and  the  Additional
Agreements  constitute  the  valid  and  binding  obligations  of  the  Company,
enforceable  against  the Company in  accordance  with their  respective  terms,
except as may be affected by bankruptcy,  insolvency, moratoria or other similar
laws affecting the enforcement of creditors' rights generally and subject to the
qualification  that the  availability  of  equitable  remedies is subject to the
discretion of the court before which any proceeding therefor may be brought.

         2.2 NO  CONFLICTS  OR  DEFAULTS.  The  execution  and  delivery of this
Agreement and the Additional  Agreements by the Company and the  consummation of
the  transactions  contemplated  hereby  and  thereby  do not and  will  not (a)
contravene  the  certificate of  incorporation  or by-laws of the Company or (b)
with or  without  the  giving of notice or the  passage  of time,  (i)  violate,
conflict  with,  or result in a breach of, or a default or loss of rights under,
any material covenant, agreement, mortgage, indenture, lease, instrument, permit
or license to which the Company is a party or by which the Company or any of its
assets  is  bound,  or any  judgment,  order  or  decree,  or any  law,  rule or
regulation to which the Company or any of its assets is subject,  (ii) result in
the  creation  of,  or give any party the  right to  create,  any lien,  charge,
security interest,  encumbrance or any other right or adverse interest ("Liens")
upon any of the capital  stock or assets of the  Company,  or (iii)  result in a
violation of or require any authorization, consent, approval, exemption or other
action  by  or  notice  or  declaration   to,  or  filing  with,  any  court  or
administrative or governmental body or agency (a "Governmental Entity") pursuant
to, the  certificate  of  incorporation  or  by-laws of the  Company or any law,
statute,  rule or regulation to which the Company is subject,  or any agreement,
instrument, order, judgment or decree to which the Company is subject.

         2.3 CAPITALIZATION. As of the date hereof, the authorized capital stock
of the Company consists of 23,000,000 shares of Common Stock, of which 3,530,214
shares were issued and  outstanding  on July 28, 1999,  and 2,000,000  shares of
preferred  stock  (the  "Preferred   Stock"),  of  which  none  are  issued  and
outstanding.  Except as set forth on Schedule 2.3,  neither the Common Stock nor
the Preferred  Stock is subject to any  preemptive or  subscription  right,  any
voting  trust  agreement  or other  contract,  agreement,  arrangement,  option,
warrant, call,


                                      -2-
<PAGE>


commitment or other right of any  character  obligating or entitling the Company
to issue,  sell,  redeem or repurchase  any of its  securities,  and there is no
outstanding security of any kind convertible into or exercisable or exchangeable
for Common Stock.  Except as set forth on Schedule 2.3,  there are no agreements
or  arrangements  pursuant  to which  the  Company  is or could be  required  to
register  shares of the Company's  capital stock or other  securities  under the
Securities Act or other agreements or arrangements (including voting agreements)
with or, to the  knowledge  of the  Company,  among any  securityholders  of the
Company  with respect to any  securities  of the  Company.  The offer,  sale and
issuance of the Series A Preferred Stock pursuant to Section 1.1 this Agreement,
and the Common Stock issuable upon  conversion of the Series A Preferred  Stock,
do not and  will  not,  as the  case  may be,  require  registration  under  the
Securities Act or any applicable state securities laws.

         2.4 VALIDITY OF SHARES. The Shares,  when issued, sold and delivered in
accordance with the terms and for the consideration expressed in this Agreement,
shall be duly and  validly  issued  (including,  without  limitation,  issued in
compliance with applicable  federal and state securities  laws),  fully paid and
non-assessable  and free of any liens,  encumbrances  or  preemptive  or similar
rights (or agreements for any such rights).  The shares of Common Stock issuable
upon  conversion  of the Shares are not  subject  to any  preemptive  or similar
rights (or  agreements  for any such rights) and,  assuming such Common Stock is
issued to the Purchaser,  upon issuance in accordance  with the Amended  Charter
shall be duly and  validly  issued  (including,  without  limitation,  issued in
compliance with all applicable  federal and state securities  laws),  fully paid
and non-assessable.

         2.5 SEC DOCUMENTS. Except as set forth on Schedule 2.5, the Company has
filed with the SEC all reports, schedules, forms, statements and other documents
required  pursuant to the Securities Act and the Exchange Act since September 1,
1997  (collectively,  and in each case  including  all  exhibits  and  schedules
thereto and documents  incorporated by reference therein,  the "SEC Documents").
As of their  respective  dates,  the SEC  Documents  complied  as to form in all
material  respects with the  requirements  of the Securities Act or the Exchange
Act, as the case may be, and the rules and  regulations  of the SEC  promulgated
thereunder  applicable to such SEC Documents.  As of their respective dates, (i)
none of the SEC Documents  (including any and all financial  statements included
therein)  filed  pursuant  to  the  Securities  Act or any  rule  or  regulation
thereunder contained any untrue statement of a material fact or omitted to state
a material fact required to be stated  therein or necessary in order to make the
statements therein not misleading and (ii) none of the SEC Documents  (including
any and  all  financial  statements  included  therein)  filed  pursuant  to the
Exchange Act or any rule or regulation thereunder contained any untrue statement
of a material  fact or omitted to state a material  fact  required  to be stated
therein or necessary in order to make the  statements  therein,  in the light of
the  circumstances  under which they were made,  not  misleading.  Except to the
extent  that  information  contained  in any SEC  Document  has been  revised or
superseded by a later filed SEC Document,  none of the SEC Documents  (including
any and all financial statements included therein) contains any untrue statement
of a  material  fact or omits to state a  material  fact  required  to be stated
therein or necessary in order to make the  statements  therein,  in the light of
the circumstances  under which they were made, not misleading.  The consolidated
financial  statements of the Company  included in all SEC Documents  filed since
September  1,  1997 (the "SEC  Financial  Statements")  comply as to form in all
material  respects with  applicable  accounting  requirements  and the published
rules and  regulations  of the SEC with respect  thereto,  have been prepared in
accordance with generally accepted accounting principles (except, in the case of
unaudited  consolidated  quarterly statements,  as permitted by Form 10-Q of the
SEC),


                                      -3-
<PAGE>


applied on a  consistent  basis  during the periods  involved  (except as may be
indicated in the notes thereto). The SEC Financial Statements fairly present the
consolidated  financial  position of the Company as of the dates thereof and the
consolidated results of its operations and cash flows for the periods then ended
(subject,  in the case of unaudited  quarterly  statements,  to normal recurring
audit adjustments).

         2.6  FINANCIAL  STATEMENTS;  UNDISCLOSED  LIABILITIES.  The Company has
furnished to the  Purchaser  its audited  balance sheet as of March 31, 1998 and
the  corresponding  audited  statements of income,  cash flows and stockholders'
equity for the  fiscal  year then ended and its  unaudited  balance  sheet as of
December 31, 1998 and the  corresponding  unaudited  statements of income,  cash
flows and  stockholders'  equity for the nine  months  ended  December  31, 1998
(collectively,  the "Financial  Statements").  The Financial Statements (i) have
been prepared in  accordance  with  generally  accepted  accounting  principles,
applied  on a  consistent  basis  throughout  the  periods  indicated,  (ii) are
complete and correct in all material respects, and (iii) are consistent with the
books and records of the Company and fairly present the  consolidated  financial
position of the Company as of the dates thereof and the consolidated  results of
operations of its operations and cash flows for the periods then ended (subject,
in the  case of  unaudited  quarterly  statements,  to  normal  recurring  audit
adjustments).  The Company does not have any  liabilities  or obligations of any
nature  (whether  accrued,  absolute,   contingent  or  otherwise)  required  by
generally  accepted  accounting  principles  to be  recognized or disclosed on a
consolidated  balance sheet of the Company or in the notes  thereto,  except (i)
liabilities reflected in the consolidated unaudited balance sheet of the Company
as of December  31,  1998 or the notes  thereto  (subject  to ordinary  year-end
adjustments),  and (ii)  liabilities  incurred  since  December  31, 1998 in the
ordinary course of business consistent with past practice.

         2.7  ABSENCE OF  CERTAIN  CHANGES OR  EVENTS.  Except as  disclosed  on
Schedule 2.7,  since  December 31, 1998,  the Company has conducted its business
only in the ordinary course consistent with past practice,  and there is not and
has not been: (i) since  December 31, 1998,  any condition,  event or occurrence
which has had a Material Adverse Effect with respect to the Company;  (ii) since
December 31, 1998,  any condition,  event or occurrence  which as of the date of
this Agreement,  individually or in the aggregate,  could reasonably be expected
to have a Material  Adverse  Effect with respect to the Company;  or (iii) since
December 31, 1998, any condition,  event or occurrence which, individually or in
the aggregate,  could  reasonably be expected to prevent or materially delay the
ability of the  Company to  consummate  the  transactions  contemplated  by this
Agreement or the Additional  Agreements or perform its obligations  hereunder or
thereunder.

         2.8  LITIGATION.  Except as disclosed on Schedule 2.8,  there is (a) no
suit, action, arbitration or proceeding pending, and (b) to the knowledge of the
Company,  no suit,  action,  arbitration  or  proceeding  threatened  against or
investigation  pending with respect to the Company that,  individually or in the
aggregate,  could  reasonably be expected to have a Material Adverse Effect with
respect to the Company or prevent or materially delay the ability of the Company
to consummate the transactions  contemplated by this Agreement or the Additional
Agreements or to perform its obligations  hereunder or thereunder,  nor is there
any judgment,  decree, citation,  injunction,  rule or order of any Governmental
Entity or arbitrator  outstanding against the Company which,  individually or in
the aggregate, has or could reasonably be expected to have, any such effect.


                                      -4-
<PAGE>


         2.9  COMPLIANCE  WITH LAWS.  The Company  holds all permits,  licenses,
variances,  exemptions,  orders and approvals of all Governmental Entities which
are material to the  operation of the  businesses  of the Company (the  "Company
Permits").  The Company is in compliance with the terms of the Company  Permits,
except where the failure so to comply,  individually or in the aggregate,  would
not have a Material  Adverse Effect with respect to the Company.  The businesses
of the Company are not being  conducted  in  violation  of any law  (domestic or
foreign),  ordinance  or  regulation  of any  Governmental  Entity,  except  for
possible  violations which,  individually or in the aggregate,  do not and could
not reasonably be expected to have a Material Adverse Effect with respect to the
Company.

                                  ARTICLE III

                   REPRESENTATIONS AND WARRANTIES OF PURCHASER

         The Purchaser represents and warrants to the Company that:

         3.1 DUE AUTHORIZATION; VALID OBLIGATION. The Purchaser or Perkin-Elmer,
as the case may be,  has or  prior to the  Closing  Date  will  have  taken  all
corporate action necessary to authorize it or Perkin-Elmer,  as the case may be,
to execute and deliver this  Agreement  and the  Additional  Agreements,  and to
consummate the transactions  contemplated hereby and thereby, and this Agreement
and the Additional  Agreements  constitute the valid and binding  obligations of
the  Purchaser  or  Perkin-Elmer,  as the case may be,  enforceable  against the
Purchaser  or  Perkin-Elmer,  as the  case  may be,  in  accordance  with  their
respective terms, except as may be limited by bankruptcy,  insolvency, moratoria
or other similar laws affecting the enforcement of creditors'  rights  generally
and subject to the qualification  that the availability of equitable remedies is
subject to the discretion of the court before which any proceeding  therefor may
be brought.

         3.2 NO  CONFLICTS.  The execution and delivery by the Purchaser of this
Agreement and by Perkin-Elmer of the Additional  Agreements and the consummation
of the  transactions  contemplated  hereby  and  thereby do not and will not (a)
contravene the  certificate of  incorporation  or by-laws (or similar  governing
instruments) of the Purchaser or  Perkin-Elmer,  as the case may be, or (b) with
or without the giving of notice or the passage of time, violate,  conflict with,
or result in a breach of, or a default or loss of rights  under,  or require any
authorization,  consent,  approval or other action under, any material covenant,
agreement,  mortgage,  indenture,  lease or instrument to which the Purchaser or
Perkin-Elmer,  as the case  may be,  is a party or by  which  the  Purchaser  or
Perkin-Elmer,  as the  case  may  be,  or any of its  assets  is  bound,  or any
judgment,  order,  decree,  law,  rule or  regulation  to which the Purchaser or
Perkin-Elmer, as the case may be, or any of its assets is subject.

         3.3 PURCHASE FOR INVESTMENT.

             (a) The  Purchaser is acquiring the Shares for  investment  for the
Purchaser's  own account  and not as a nominee or agent,  and not with a view to
the resale or distribution of any part thereof, and the Purchaser has no present
intention of selling,  granting any participation in, or otherwise  distributing
the same. The Purchaser  further  represents that it does not have any contract,
undertaking, agreement or arrangement with any Person to sell, transfer or grant
a  participation  to such Person or to any third Person,  with respect to any of
the Shares.


                                      -5-
<PAGE>


             (b) The Purchaser  understands  that the Shares are not  registered
under  the Act on the  ground  that  the  sale and the  issuance  of  securities
hereunder  is exempt from  registration  under the Act  pursuant to Section 4(2)
thereof,  and that the Company's reliance on such exemption is predicated on the
Purchaser's  representations  set forth herein.  The Purchaser is an "accredited
investor" as that term is defined in Rule 501(a) of Regulation D under the Act.

         3.4 INVESTMENT EXPERIENCE.  The Purchaser acknowledges that it can bear
the economic risk of its  investment in the Shares,  and has such  knowledge and
experience  in financial  and business  matters that it is capable of evaluating
the merits and risks of the investment in the Shares.

         3.5 INFORMATION. The Purchaser has been given the opportunity to review
such  information as it deemed necessary to evaluate an investment in the Series
A Preferred  Stock.  The  Purchaser  has been  afforded the  opportunity  to ask
questions of  representatives of the Company concerning the terms and conditions
of the offering.

         3.6 RESTRICTED  SECURITIES.  The Purchaser  understands that the Shares
and the  shares  of  Common  Stock  issuable  upon  conversion  of the  Series A
Preferred  Stock (the  "Restricted  Shares")  may not be sold,  transferred,  or
otherwise  disposed  of  without  registration  under  the  Act or an  exemption
therefrom,  and  that in the  absence  of an  effective  registration  statement
covering the Shares or any available  exemption from registration under the Act,
the Restricted Shares must be held indefinitely. The Purchaser is aware that the
Restricted Shares may not be sold pursuant to Rule 144 promulgated under the Act
unless all of the  conditions of that Rule are met. Among the conditions for use
of Rule 144 may be the  availability of current  information to the public about
the Company.

                                   ARTICLE IV

                 CONDITIONS TO THE OBLIGATIONS OF THE PURCHASER

         The  obligations  of the Purchaser  under this Agreement are subject to
the satisfaction,  on or prior to the Closing Date, of the following conditions,
any of which may be waived in whole or in part by the Purchaser:

         4.1 DUE  PERFORMANCE.  The Company shall have performed and complied in
all  material  respects  with all  agreements  and  conditions  required by this
Agreement  to be  performed  or  complied  with by it on or prior to the Closing
Date.

         4.2 ACCURACY OF REPRESENTATIONS AND WARRANTIES. All representations and
warranties of the Company set forth in this Agreement  shall be true and correct
in all material respects on and as of the Closing Date, as though made on and as
of the Closing Date.

         4.3 AMENDED CHARTER. The Company shall have duly adopted,  executed and
filed with the Secretary of State of Delaware the Amended Charter  providing for
rights  and  preferences  establishing  the terms and the  relative  rights  and
preferences  of the Series A Preferred  Stock in the form set forth in EXHIBIT C
hereto,  and the  Company  shall not have  adopted  or filed any other  document
designating  terms,  relative  rights or  preferences  of the Series A Preferred
Stock.  The Amended  Charter shall be in full force and effect as of the Closing
under the laws of the state of  Delaware  and  shall  not have been  amended  or
modified.


                                      -6-
<PAGE>


         4.4 SECURITIES LAW COMPLIANCE.  The Company shall have made all filings
under all applicable  federal and state securities laws necessary  to consummate
the  issuance of  the Series A Preferred Stock  pursuant  to this  Agreement  in
compliance with such laws.

         4.5 LICENSE  AGREEMENT.  The Company  shall have executed and delivered
the License Agreement.

         4.6 CONSULTING AGREEMENT. The Company shall have executed and delivered
the Consulting Agreement.

         4.7  CLOSING  DOCUMENTS.  The  Company  shall  have  delivered  to  the
Purchaser all of the following documents:

             (a) an  Officer's  Certificate,  dated  the  date  of  the  Closing
executed by the President of the Company with respect to the representations and
warranties set forth in Article II of this Agreement and the due performance and
satisfaction  of the  obligations  and conditions  hereunder to be performed and
satisfied by the Company;

             (b)  certified  copies  of  the  resolutions  duly  adopted  by the
Company's board of directors (the "Board")  authorizing the execution,  delivery
and  performance  of this  Agreement,  the filing of the  Amended  Charter,  the
issuance and sale of the Series A Preferred  Stock, the reservation for issuance
upon  conversion  of the Series A  Preferred  Stock of an  aggregate  of 800,000
shares  of  Common  Stock  and  the  consummation  of  all  other   transactions
contemplated by this Agreement;

             (c)  certified  copies of the  Amended  Charter  and the  Company's
by-laws,  each as in  effect at the  Closing  and a  certificate  as to the good
standing of the Company in the state of its  formation  and each state where the
Company is required to be qualified as a foreign corporation; and

             (d) such other documents relating to the transactions  contemplated
by this Agreement as the Purchaser or its counsel may reasonably request.

         4.8 NO CLAIMS.  No claim,  action,  suit,  investigation  or proceeding
shall be pending or  threatened  by any  Person or  Persons  against  any of the
parties  hereto  or any of  their  respective  affiliates  which,  if  adversely
determined, could (a) prevent, hinder or enjoin consummation of the transactions
contemplated  by this Agreement or the  Additional  Agreements or (b) materially
and  adversely  affect the business of the Company.  No party to this  Agreement
shall have received written notice from any Governmental Entity of its intention
to (i) institute any action or proceeding to restrain, enjoin, nullify or render
ineffective  this  Agreement or any  Additional  Agreement  or the  transactions
contemplated  hereby or  thereby or (ii)  commence  any  investigation  into the
consummation of this Agreement or any Additional  Agreement or the  transactions
contemplated  hereby  or  thereby,  which,  in  the  reasonable  opinion  of the
Purchaser, would make it inadvisable to consummate any such transactions.


                                      -7-
<PAGE>


                                   ARTICLE V

                  CONDITIONS TO THE OBLIGATIONS OF THE COMPANY

         The  obligations  of the  Company  under  this  Agreement  to issue and
deliver Shares to the Purchaser are subject to the satisfaction,  on or prior to
the Closing  Date, of the  following  conditions,  any of which may be waived in
whole or in part by the Company:

         5.1 DUE  PERFORMANCE.  Such  Purchaser  shall have fully  performed and
complied with all  agreements  and  conditions  required by this Agreement to be
performed or complied with by it on or prior to the Closing Date.

         5.2 ACCURACY OF REPRESENTATIONS AND WARRANTIES. All representations and
warranties  of such  Purchaser  set  forth in this  Agreement  shall be true and
correct on and as of the Closing Date in all respects,  as though made on and as
of the Closing Date.

         5.3 CERTIFICATE. The Company shall have received a certificate executed
by an  officer  of  the  Purchaser  with  respect  to  the  representations  and
warranties of the Purchaser set forth in this Agreement and the due  performance
and satisfaction of the obligations and conditions hereunder to be performed and
satisfied by the Purchaser.

         5.4 LICENSE AGREEMENT. The Perkin-Elmer Corporation shall have executed
and delivered the License Agreement.

         5.5  CONSULTING  AGREEMENT.  The  Perkin-Elmer  Corporation  shall have
executed and delivered the Consulting Agreement.

         5.6 NO CLAIMS.  No claim,  action,  suit,  investigation  or proceeding
shall be pending or  threatened  by any  Person or  Persons  against  any of the
parties  hereto  which,  if  adversely  determined,  would (a) prevent or hinder
consummation  of  the  transactions   contemplated  by  this  Agreement  or  any
Additional Agreement, or (b) result in the payment by the Company of substantial
damages as a result of the  transactions  contemplated  hereby or thereby  which
would materially and adversely  affect the business of the Company.  No party to
this Agreement shall have received written notice from any  Governmental  Entity
of its intention to (i) institute any action or proceeding to restrain,  enjoin,
nullify or render ineffective this Agreement or any Additional  Agreement or the
transactions  contemplated  hereby or thereby or (ii) commence any investigation
into the  consummation  of this  Agreement  or any  Additional  Agreement or the
transactions contemplated hereby or thereby, which, in the reasonable opinion of
the Company, would make it inadvisable to consummate any such transactions.

                                   ARTICLE VI

                              AFFIRMATIVE COVENANTS

         6.1 MEETINGS OF THE BOARD OF DIRECTORS.

             (a) The Company  covenants and agrees that so long as the Purchaser
shall  continue  to hold at least 500 shares of Series A  Preferred  Stock,  the
Purchaser  shall  have  the  right  to  designate  a  representative  reasonably
acceptable to the Company to attend and observe


                                      -8-
<PAGE>


each meeting of the Board of the Company and its  committees  (the  "OBSERVER").
The Company  shall also  provide to the Observer a copy of all notices and other
written  materials  prepared for and provided to the Board of the Company at the
same time and in the same  manner as such  notices  and  written  materials  are
provided to members of the Board.  Notwithstanding  the  foregoing,  the Company
shall be entitled to (x) withhold  from the Observer  any  confidential  written
materials  dealing with  commercial  matters  involving the  Purchaser,  and (y)
exclude the  Observer  from any portion of any meeting of the Board of Directors
dealing with commercial matters involving the Purchaser.  The rights provided to
the Purchaser  herein are personal to the Purchaser and are not  transferable in
connection with a sale of all or any portion of the Series A Preferred Stock.

             (b) The Purchaser shall, and shall cause its Affiliates,  officers,
directors, employees, agents and representatives to, keep secret and not divulge
to any third party or otherwise use for the  Purchaser's  benefit (other than in
connection   with  the   transactions   contemplated   by  this  Agreement)  any
confidential  or  proprietary  information of the Company to which the Purchaser
obtains  access  pursuant to this  Section  6.1;  PROVIDED,  HOWEVER,  that such
obligation  shall not apply to any  information  to the extent that (a) it is or
becomes part of public or industry knowledge or literature as a result of causes
other than the acts or omissions of the Purchaser or its  Affiliates,  officers,
directors, employees, agents or representatives, (b) can be demonstrated to have
been  known to the  Purchaser  prior to its  receipt  from the  Company,  (c) is
received  by the  Purchaser  in  good  faith  from a third  party  or (d) can be
demonstrated to have been independently developed by the Purchaser.

         6.2 RESERVATION OF COMMON STOCK. The Company shall at all times reserve
and keep available out of its  authorized  but unissued  shares of Common Stock,
solely for the purpose of issuance upon the conversion of the Series A Preferred
Stock, such number of shares of Common Stock issuable upon the conversion of all
outstanding  Series A Preferred  Stock.  All shares of Common Stock which are so
issuable  shall,  when  issued,  be duly  and  validly  issued,  fully  paid and
non-assessable  and free from all taxes,  liens and charges.  The Company  shall
take all such  actions as may be  necessary  to assure  that all such  shares of
Common  Stock  may be so  issued  without  violation  of any  applicable  law or
governmental  regulation or any requirements of any domestic securities exchange
upon which shares of Common Stock may be listed  (except for official  notice of
issuance which shall be immediately transmitted by the Company upon issuance).

         6.3 FILING OF REPORTS WITH THE SEC. With a view to making  available to
the  Purchaser  the benefits of Rule 144 and any other rule or regulation of the
SEC that may at any time permit the Purchaser to sell  securities of the Company
to the public without  registration  or pursuant to a registration  on Form S-3,
the Company  agrees to (a) use its best efforts to file with the SEC in a timely
manner  all  reports  and other  documents  required  of the  Company  under the
Securities Act and the Exchange Act and (b) furnish to the Purchaser, so long as
it owns any  Shares  or Common  Stock  issued  upon  conversion  of the  Shares,
forthwith  upon request (i) a written  statement  that it has complied  with the
reporting  requirements of Rule 144, the Securities Act and the Exchange Act, or
that it qualifies as a registrant  whose  securities  may be resold  pursuant to
Form  S-3,  (ii) a copy of the most  recent  annual or  quarterly  report of the
Company and such other  reports and  documents so filed by the Company and (iii)
such other information as may be reasonably  requested in availing the Purchaser
of any  rule or  regulation  of the SEC that  permits  the  selling  of any such
securities without registration or pursuant to such Form S-3.


                                      -9-
<PAGE>


         6.4 DELIVERY OF  STOCKHOLDER  INFORMATION.  The Company  covenants  and
agrees that so long as the Purchaser shall hold any shares of Series A Preferred
Stock,  the  Company  shall  furnish to the  Purchaser  a copy of all notices of
stockholder  meetings and other written  materials  prepared for and provided to
holders  of its  Common  Stock at the same  time and in the same  manner as such
notices and written materials are provided to holders of its Common Stock.

                                  ARTICLE VII

                                    TRANSFER

         7.1 GENERAL RESTRICTIONS ON TRANSFER.

             (a) The  Purchaser  shall  not  directly  or  indirectly  effect  a
Transfer of any  Restricted  Shares owned or held by it unless (i) such Transfer
is  consummated  after  compliance  with the  provisions  of Section  7.1(b) and
Section 7.2 hereof,  and (ii) the certificate or certificates  representing such
Restricted  Shares  bear a legend as provided  in, and  subject to,  Section 7.3
hereof.

             (b) The  Purchaser  shall  not  directly  or  indirectly  effect  a
Transfer  of any  Restricted  Shares  owned or held by it if such  action  would
constitute a violation of any federal securities laws or any state securities or
blue sky laws. In connection with any Transfer of Restricted Shares not effected
through a Public  Sale,  the  Purchaser  shall  deliver to the Company a written
opinion of counsel  reasonably  acceptable  to the Company (it being  understood
that the General Counsel of the Purchaser is acceptable to the Company), in form
and substance  reasonably  satisfactory  to the Company,  to the effect that the
transfer of such Shares is exempt from registration under the Securities Act and
applicable state securities laws.

             (c) The Company shall refuse to record in its stock  transfer books
a Transfer by the  Purchaser of any  Restricted  Shares that are not effected in
compliance  with this Agreement,  and any such attempted  Transfer shall be null
and void.

         7.2 FIRST OFFER  RIGHT.  At least 14 calendar  days prior to making any
Transfer of any  Restricted  Stock (other than in a Public Sale or a Transfer to
an Affiliate of the Purchaser), the Purchaser shall deliver a written notice (an
"Offer  Notice") to the Company,  which shall disclose in reasonable  detail the
proposed  number of shares of Restricted  Stock to be transferred  (the "Offered
Stock"),  the proposed  terms and conditions of the Transfer and the identity of
the  prospective  transferee(s)  (if any). The Company may elect to purchase all
(but not less than all) of the Offered  Stock  specified  in the Offer Notice at
the price and on the terms  specified  therein by delivering  written  notice of
such election (the "Election  Notice") to the Purchaser as soon as practical but
in any event  within ten  calendar  days after the  delivery of the Offer Notice
(the  "Election  Notice  Deadline").  If the Company has elected to purchase all
(but not less than all) Offered  Stock from the  Purchaser,  the purchase of the
Offered  Stock shall be  consummated  as soon as practical but not later than 15
calendar days after the delivery of the Election Notice to the Purchaser. If the
Company elects not to purchase all of the Offered Stock,  the Purchaser may, for
a period of 60 days after the Election  Notice  Deadline,  transfer such Offered
Stock to one or more  third  parties at a price no less than the price per share
specified  in the  Offer  Notice  and on other  terms no more  favorable  to the
transferees  thereof  than  offered  to  the  Company.  Any  Offered  Stock  not
transferred  within such 60 day period shall be  re-offered to the Company under
this Section 7.2 above prior to any subsequent Transfer.


                                      -10-
<PAGE>


         7.3 LEGEND.

             (a) A copy of this  Agreement  shall  be filed  with the  permanent
records of the Company and shall be kept at all times at the principal  place of
business of the Company. The Purchaser agrees that all certificates representing
shares of Restricted Stock shall have affixed thereto a legend  substantially in
the following form:

         "THE SHARES  REPRESENTED  BY THIS  CERTIFICATE  HAVE NOT BEEN
         REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
         "ACT"),  OR ANY STATE SECURITIES LAWS AND MAY NOT BE OFFERED,
         SOLD,  TRANSFERRED  OR  OTHERWISE  DISPOSED  OF OR PLEDGED OR
         HYPOTHECATED   UNLESS   REGISTERED  UNDER  THE  ACT  AND  ANY
         APPLICABLE  STATE SECURITIES LAWS OR UNLESS AN EXEMPTION FROM
         REGISTRATION  UNDER  THE ACT AND ANY SUCH  LAWS IS  AVAILABLE
         (AND,  IN  SUCH  CASE,  AN  OPINION  OF  COUNSEL   REASONABLY
         ACCEPTABLE TO THE COMPANY,  IN FORM AND SUBSTANCE  REASONABLY
         SATISFACTORY TO THE COMPANY, SHALL HAVE BEEN DELIVERED TO THE
         COMPANY  TO  THE  EFFECT  THAT  THE  OFFER,  SALE,  TRANSFER,
         DISPOSITION,  PLEDGE OR HYPOTHECATION  THEREOF IS EXEMPT FROM
         REGISTRATION UNDER THE ACT AND ANY SUCH LAWS)."

             (b)  Notwithstanding  the foregoing,  the legend  contained in this
Section 7.3 may be removed from a  certificate  upon receipt by the Company of a
written  opinion of  counsel  reasonably  acceptable  to the  Company  (it being
understood  that the  General  Counsel of the  Purchaser  is  acceptable  to the
Company),  in form and substance reasonably  satisfactory to the Company, to the
effect  that such  legend is no longer  required  under the  Securities  Act and
applicable state securities laws.

                                  ARTICLE VIII

                                  MISCELLANEOUS

         8.1  SURVIVAL  OF  REPRESENTATIONS,   WARRANTIES  AND  AGREEMENTS.  All
representations  and  warranties  and  statements  made by the  Company  in this
Agreement  or in any document or  certificate  delivered  pursuant  hereto shall
survive the Closing Date for a period of one year.

         8.2  EXPENSES.  Each  party  shall  bear its own fees and  expenses  in
connection with consummating the transactions contemplated hereby.

         8.3 NOTICE. All communications,  notices, requests, consents or demands
given or  required  under  this  Agreement  shall  be in  writing  and  shall be
delivered  personally  or  sent  by  facsimile  or  by a  nationally  recognized
overnight courier, and shall be deemed to have been duly given when so delivered
personally or sent by  facsimile,  with receipt  confirmed,  or one business day
after the date of deposit with such nationally recognized overnight courier. All
such communications,  notices, requests,  consents or demands shall be addressed
to the  party  for whom  intended,  as  follows,  or to such  other  address  or
facsimile  number as may be  furnished  by such  party by  notice in the  manner
provided herein:


                                      -11-
<PAGE>




                  If to the Company:

                           SpectruMedix Corporation
                           2124 Old Gatesburg Road
                           State College, Pennsylvania  16803
                           Attention:  Dr. Joseph Adlerstein
                           Tel:  (814) 867-8600
                           Fax: (814) 867-4513

                  with a copy to:

                           McDermott, Will & Emery
                           50 Rockefeller Plaza
                           New York, New York  10020
                           Attention:  Stephen B. Selbst
                           Tel.: (212) 547-5362
                           Fax: (212) 547-5444

                  If to Purchaser:

                           PE Corporation
                           761 Main Avenue
                           Norwalk, CT  06859-0313
                           Attention:  Secretary
                           Tel.:  (203) 762-1000
                           Fax: (203) 761-5000

         8.4 ENTIRE AGREEMENT. This Agreement and the schedules and the exhibits
thereto,  sets forth the entire understanding of the parties hereto with respect
to its  subject  matter,  merges and  supersedes  all prior and  contemporaneous
understandings  with  respect  to its  subject  matter  and may not be waived or
modified, in whole or in part, except by a writing signed by each of the parties
hereto.  No waiver of any provision of this  Agreement in any instance  shall be
deemed to be a waiver of the same or any other  provision in any other instance.
Failure of any party to enforce any  provision  of this  Agreement  shall not be
construed as a waiver of its rights under such provision.

         8.5  SUCCESSORS  AND ASSIGNS.  This  Agreement  shall be binding  upon,
enforceable  against and inure to the  benefit of, the parties  hereto and their
respective   heirs,   administrators,   executors,   personal   representatives,
successors  and  assigns,  and  nothing  herein is intended to confer any right,
remedy or benefit upon any other Person.

         8.6 GOVERNING LAW; SUBMISSION TO JURISDICTION.  This Agreement shall in
all  respects be governed by and  construed in  accordance  with the laws of the
State of New York  applicable  to  agreements  made and fully to be performed in
such  state,  without  giving  effect to  conflicts  of law rules or  provisions
(whether  of the State of New York or any other  jurisdiction)  that would cause
the  application  of the laws of any  jurisdiction  other  than the State of New
York.  The parties hereto agree to submit to the  jurisdiction  of the state and
federal  courts  in the State of New York  with  respect  to any claim or matter
arising under this Agreement, and hereby consent


                                      -12-
<PAGE>


that  service of process  with  respect to all courts in and of the State of New
York may be made by registered mail to such Person at the address of such Person
set forth herein.

         8.7   COUNTERPARTS.   This   Agreement  may  be  executed  in  multiple
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same instrument.

         8.8  CONSTRUCTION.   Headings  contained  in  this  Agreement  are  for
convenience only and shall not be used in the  interpretation of this Agreement.
References  herein to  Articles,  sections  and  exhibits  are to the  articles,
sections and exhibits, respectively, of this Agreement. The schedules are hereby
incorporated  herein by  reference  and made a part of this  Agreement.  As used
herein, the singular includes the plural, and the masculine, feminine and neuter
gender each includes the others where the context so indicates.

         8.9  SEVERABILITY.  If any  provision  of this  Agreement is held to be
invalid or  unenforceable by a court of competent  jurisdiction,  this Agreement
shall be  interpreted  and  enforceable  as if such  provision  were  severed or
limited,  but only to the extent  necessary  to render such  provision  and this
Agreement enforceable.

                                   ARTICLE IX

                                   DEFINITIONS

         9.1 DEFINED TERMS.  As used in this  Agreement,  and unless the context
requires a different meaning, the following terms have the meanings indicated:

         "Additional  Agreements"  shall  mean  the  License  Agreement  and the
Consulting Agreement.

         "Affiliate"   of  any   particular   Person   means  any  other  Person
controlling,  controlled by or under common control with such particular Person,
where "control" means the  possession,  directly or indirectly,  of the power to
direct the management and policies of a Person whether  through the ownership of
voting securities, contract or otherwise.

         "Agreement" shall mean this Stock Purchase  Agreement,  as the same may
be amended, supplemented or modified in accordance with the terms hereof.

         "Amended  Charter"  shall have the  meaning  given such term in Section
4.3(c).

         "Closing" shall have the meaning given such term in Section 1.3.

         "Closing Date" shall have the meaning given such term in Section 1.3.

         "Common  Stock"  shall  mean  common  stock of the  Company,  par value
$.00115 per share.

         "Consulting  Agreement"  has the  meaning  given such term in the first
recital.

         "Exchange Act" means the  Securities  Exchange Act of 1934, as amended,
or any successor federal statute thereto.


                                      -13-
<PAGE>


         "License  Agreement"  has the  meaning  given  such  term in the  first
recital.

         "Person" means an individual, a partnership,  a corporation,  a limited
liability  company,  an  association,  a joint stock  company,  a trust, a joint
venture,  an  unincorporated  organization  and a  governmental  entity  or  any
department, agency or political subdivision thereof.

         "Preferred Stock" has the meaning given such term in Section 2.3.

         "Public  Sale"  means  any sale of Common  Stock or Series A  Preferred
Stock to the public pursuant to any offering registered under the Securities Act
or to the  public  through a broker,  dealer or  market  maker  pursuant  to the
provisions  of Rule 144  adopted  under the  Securities  Act (or any  similar or
analogous  exemption).  "Restricted Shares" has the meaning set forth in Section
3.6 hereof.

         "SEC" means the U.S. Securities and Exchange Commission.

         "Securities  Act" means the Securities Act of 1933, as amended,  or any
successor federal statute thereto.

         "Series A Preferred  Stock"  means the Series A Preferred  Stock of the
Company, par value $.00115 per share.

         "Shares" shall have the meaning given such term in Section 1.1.

         "Transfer"  means  any  sale,  transfer,  assignment,  gift,  exchange,
pledge, hypothecation, encumbrance or other disposition of any Restricted Shares
or any interest therein,  whether voluntary or involuntary and regardless of the
nature or method  thereof  (other than an  exchange,  reclassification  or other
conversion of Restricted Shares into cash, securities or other property pursuant
to a merger, consolidation or recapitalization of the Company).


                                      -14-
<PAGE>


         IN  WITNESS  WHEREOF,  each of the  parties  hereto has  executed  this
Agreement as of the date first set forth above.

                                    COMPANY:

                                    SPECTRUMEDIX CORPORATION



                                    By:   /s/ JOSEPH K. ADLERSTEIN
                                         ----------------------------------
                                    Name:  Joseph Adlerstein
                                    Title: President


                                    PE CORPORATION



                                    By:   /S/ MICHAEL W. HUNKAPILLER
                                         ----------------------------------
                                    Name: Michael W. Hunkapiller
                                    Title:  Senior Vice President







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