Document:

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                                                                   Exhibit 10.18

                              EMPLOYMENT AGREEMENT

     THIS EMPLOYMENT AGREEMENT (the "AGREEMENT") made as of the 17th day of
October 2000, by and between APBiotech Inc., a Delaware corporation with its
principal place of business at 800 Centennial Avenue, Piscataway, New Jersey
08855 (the "Employer"), and Sandra Cartie, an individual residing at 11 Thomas
Road, Westport, Connecticut 06880 (the "EXECUTIVE").

                                  WITNESSETH:

     WHEREAS, the Employer desires to employ the Executive, and the Executive
    desires to be employed by the Employer, upon the terms and conditions set
    forth in the Agreement.

    NOW, THEREFORE, in consideration of the above premises and the mutual
    promises contained herein, the Employer and the Executive agree as follows:

     1.  Appointment

     The Employer hereby employs the Executive to serve as Chief Financial
Officer of the Employer, and the Executive hereby accepts such employment, upon
the terms and conditions set forth in this Agreement. The Executive will report
to the Chief Executive Officer of the Employer (the "CEO") and will be subject
to the direction of the Board of Directors of the Employer (the "BOARD").

     2.  Duties of the Executive

     The Executive shall, while this Agreement is in effect:

     (a) have the authority and responsibilities of a chief financial officer
to manage the financial operations of the Employer, consistent with the terms
and conditions hereof. The Employer will provide the Executive with a staff,
office facilities and other support reasonably necessary for the Executive to
perform her responsibilities under this Agreement;

     (b) devote the whole of her time, attention and abilities during normal
business hours, and at such other times as the Employer or her duties may
require, to the business and affairs of the Employer;

     (c) faithfully and diligently perform such duties and exercise such powers
as may from time to time be assigned to or vested in her;

     (d) obey all reasonable and lawful directions given to her by the Board,
the CEO and by any person having executive authority over her, consistent with
her professional duties as a chief financial officer;

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     (e)  provide to the Board and the CEO such information as in her possession
          concerning the financial affairs of the Employer;

     (f)  use her best endeavours to manage investor relations and promote the
          interests and reputation of the Employer; and

     (g)  act as director of the Board, in accordance with the By-Laws of the
          Employer, if so elected or appointed by the shareholders or Board of
          the Employer. Subject to the vote of the shareholders or Board of the
          Employer, and to the provisions of the By-Laws of the Employer, it is
          contemplated by the Executive that she will be elected or appointed as
          a director of the Board.

     3.   Location

     The Executive's normal place of work is the Employer's principal place of
business in Piscataway, New Jersey, or such other location as the Employer may
from time to time require the Executive to base herself.

     4.   General Obligations

     The Executive agrees that, during her employment with the Employer, she
will not (without the prior written consent of the Board) be directly or
indirectly engaged or financially interested in any other business activity,
trade or occupation. However, this provision shall not preclude the Executive
from investing her assets in a public company for which she will not be
performing any services and which will not result in a conflict of interest,
other than a Prohibited Company (as defined in Section 13). The preceding
notwithstanding, the Executive shall be: (a) permitted to exercise her vested
stock options of her prior employer no later than November 30, 2000; and (b)
required to sell her stock of her prior employer no later than May 31, 2002.
Nothing herein shall prohibit the Executive from owning mutual funds.

     5.   Salary

     A base salary of three hundred thousand dollars ($300,000) per annum, less
applicable withholdings, will be paid in accordance with the Employer's
standard payroll practices. The salary will be reviewed in line with
performance, and as part of the general review, on or about January 1 of each
year. The Employer agrees to utilize criteria in granting salary increases that
are comparable to the criteria utilized in granting salary increases to other
senior corporate executives of the Company. The first review will take place on
January 1, 2002.

     6.  Car

     The Executive will be eligible to utilize a 2 door or 4 door leased
Employer car, suitable for business requirements in accordance with Employer
policies, having a pre-sales tax purchase price of up to sixty thousand dollars
($60,000). The Executive may elect to utilize an Employer car having
a pre-sales tax purchase price in excess of sixty thousand dollars ($60,000), in
which case she will be responsible for any lease payments in excess of the lease
payments due on an Employer car having a pre-sales tax purchase price of sixty
thousand dollars ($60,000). The Executive shall have an option to purchase the
car at fair market value at the expiration of

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the lease, to the extent permitted by the lease. In addition, the Employer will
reimburse the Executive for fuel, maintenance, insurance and other car-related
expenses in accordance with Employer policies.

     7.   Paid Time Off

          The Executive shall participate in the Employer's PTO program, with
an initial annualized eligibility of twenty (20) days.

     8.   Benefits

     (a)  The Executive shall be eligible to participate in the Employer's
pension, 401(k), 423(a) Stock Purchase Plan, medical and life insurance plans
and employee relocation plan in accordance with the Employer's policies.

     (b)  In lieu of a reimbursement for travel and accommodations for the
purpose of house hunting, and in lieu of a payment of three thousand seven
hundred and fifty dollars ($3,750) for miscellaneous expenses, the Executive
will be paid the sum of ten thousand dollars ($10,000) upon commencement of her
employment.

     9.   Stock Option Plan

     (a)  The Board (or the Option Committee) may, at its sole discretion and
from time to time, grant stock options to the Executive in accordance with the
Employer's policies, which currently provide for the award of stock options on
an annual basis (the "PERIODIC OPTIONS"). Subject to the sole discretion of the
Board (or the Option Committee) and to satisfactory reviews of the Executive's
performance, the Employer anticipates recommending that the Board (or the
Option Committee) grant Periodic Options to the Executive based upon criteria
similar to those used by the Employer in recommending the grant of Periodic
Options to the other senior corporate executives of the Employer. It is
anticipated that the Employer shall make any such recommendations when
recommending the grant of Periodic Options to the other senior corporate
executives of the Employer. The Executive will be eligible for an award of
Periodic Options beginning in calendar year 2001. In the event that the
Executive is granted IPO Options (as hereinafter defined), the Executive shall
not also be eligible for Periodic Options during the same year in which the IPO
Options are granted.

     (b)  During the year in which the Employer completes an initial public
offering while this Agreement is in effect, the Employer will recommend to the
Board (or the Option Committee) that the Executive be granted an option to
purchase up to a number of shares equal to two million four hundred thousand
dollars ($2,400,000) divided by the per share offering price in the initial
public offering (the "IPO OPTIONS"), minus the number of Periodic Options, if
any, granted to the Executive during the same calendar year.

     (c)  On termination of the Executive's employment, whether lawfully,
unlawfully or in breach of contract, the Executive shall lose certain rights or
benefits (including rights or benefits which the Executive would not have lost
had her employment not been terminated) as set forth in the Employer's
executive stock option plan in effect as of the date of termination (the
"PLAN"). The preceding notwithstanding, if the Executive's employment: (i) is
terminated as a

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result of a change of control (as defined in the Plan) of the Employer, a
permanent closure of the facility where the Executive is employed, or the death
or disability (as defined in the Plan) of the Executive, then all of the
unexpired options granted to the Executive shall fully vest; or (ii) is
terminated without cause, or as a result of a redundancy or lay-off, then all of
the unexpired options granted to the Executive shall fully vest only if so
determined by the Board in its sole discretion. Any such vested options shall
expire if not exercised within three (3) months of the Executive's termination
(or of the Board determination contemplated under Section 9(c)(ii)). The
Executive shall not be entitled, by way of compensation or otherwise, to be
compensated for the loss of any rights or benefits under any Employer stock
option plan.

     (d) The Executive will be required to comply with the Employer's stock
ownership guideline policy, as amended from time to time.

     10. Bonus

     (a) The Board may, at its sole discretion and from time to time, grant
a performance bonus (in cash and/or as a grant of the Employer's deferred stock)
to the Executive in accordance with Employer policies. The Executive's position
falls within the scope of an Employer policy which currently offers potential
for a maximum payout of one hundred percent (100%) of her base annual salary
based upon business and personal performance. The Employer agrees to utilize
criteria in granting performance bonuses that are comparable to the criteria
utilized in granting performance bonuses to other senior corporate executives of
the Company. The Executive will be eligible for a performance bonus beginning in
calendar year 2001.

     (b) In addition to the bonus contemplated in Section 10(a), in the event
that the Employer completes an initial public offering during calendar year 2000
or 2001, the Executive will receive a bonus for such calendar year equal to one
hundred percent (100%) of her base annual salary.

     (c) In the event that; (i) the Executive has been granted a performance
bonus in the form of deferred stock; and (ii) the Executive's employment is
(A) terminated as a result of a change of control of the Employer, a permanent
closure of the facility where the Executive is employed, or the death or
disability of the Executive, then all of the deferred stock granted to the
Executive shall be delivered to the Executive in accordance with the Employer's
policies; or (B) is terminated without cause, or as a result of a redundancy or
lay-off, then all of the deferred stock granted to the Executive shall be
delivered to the Executive only if so determined by the Board in its sole
discretion and in accordance with the Employer's policies.

     (d) Upon the commencement of her employment, the Executive will receive a
signing bonus in the amount of nineteen thousand dollars ($19,000). The signing
bonus shall be reduced pro-rata for every day between October 23, 2000 and
December 1, 2000 in which the Executive delays commencement of her employment
with the Employer.

     11. Confidentiality

     The Executive agrees that she shall not use, divulge or communicate to any
person, firm or organization (other than in the course of properly performing
her duties or with the consent of the Board or as required by law) any of the
trade secrets or other confidential,

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technical or business information of the Employer, including without limitation
any information relating to the organization, transactions, accounts, finances
or affairs of the Employer, the names of customers and suppliers, results of
research, scientific studies or analyses, detail of training, manufacturing or
accounting methods, marketing analyses, new products, sales promotions, reports,
papers, data and other information, in whatever form, prepared for the Employer
or acquired by the Employer (the "CONFIDENTIAL INFORMATION") which she received
or obtained while in the service of the Employer. This restriction shall
continue to apply after the termination of her employment under this Agreement
(howsoever occasioned) without limit in point of time but shall cease to apply
to information which has come into the public domain otherwise than through
unauthorized disclosure by the Executive. The Executive shall also use her best
endeavors to prevent the unauthorized use, publication or disclosure of
Confidential Information.

     12.  Intellectual Property Rights

     12.1  If the Executive (whether alone or with others) shall at any time
during the period of this Agreement make or reduce to practice an invention,
create an original work of authorship, develop a mark or name, or otherwise
create any trade secret or other intellectual property relating to or capable of
being used in the business of the Employer (the "INTELLECTUAL PROPERTY"), she
shall promptly disclose to the Employer full details thereof.

     12.2  Any Intellectual Property contemplated by Section 12.1 shall be the
property of the Employer. The Executive shall, at the request and expense of the
Employer, do all things necessary to vest all right, title and interest in any
such Intellectual Property in the Employer, or its nominee, absolutely as legal
and beneficial owner and to secure and preserve full patent, copyright,
trademark or other appropriate forms of protection therefor in any part of the
world.

     13.  Covenant Not to Compete

     13.1  Definitions:

     (a) COMPANY means the Employer and its affiliates and subsidiaries.

     (b) PROHIBITED BUSINESS means all or any of the research, manufacture or
supply of life science products and services for the purpose of DNA: sequencing,
drug development, chromatography, and utilization of electrophoresis systems for
DNA synthesis.

     (c) PROHIBITED COMPANY means companies engaged in or about to be engaged in
Prohibited Business. The attached Exhibit A gives current examples.

     (d) RESTRICTED PERIOD means the period of twelve (12) months commencing
from the Termination Date.

     (e) TERMINATION DATE means the date on which the Executive's employment
under this Agreement shall terminate irrespective of the cause or manner.

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     (f) TERRITORY means the United States of America, Canada, the European
Union, Norway, Switzerland, Australia, Japan and Russia.

     13.2  Since the Executive will obtain, in the course of her employment with
the Employer, Confidential Information, and since she is likely to obtain,
during the course of her employment with the Employer, personal knowledge of and
influence over numerous employees and customers of the Employer, the Executive
hereby agrees that she will not, directly or indirectly, during the Restricted
Period and within the Territory:

     (a) Be employed by, or provide consulting services to: (i) a Prohibited
Company; or (ii) any business that is otherwise in competition with the
Employer, provided that this restriction shall not extend to any employment the
performance of which could not involve the Executive in competition with the
Employer;

     (b) Entice away or solicit any person who is employed or engaged by the
Company; either: (i) as a director or a managerial, executive or senior
technical capacity; or (ii) who is in possession of Confidential Information
belonging to the Employer; and

     (c) Entice away or solicit any customer of the Company with whom the
Executive has had business dealings or personal contact during her employment
with the Employer.

     13.3  If the Executive shall breach, or threaten to commit a breach of any
of the covenants set forth in Sections 12 or 13 (the "RESTRICTIVE COVENANTS"),
the Employer shall have the right, in addition to, and not in lieu of, any other
rights and remedies available to the Employer under law or in equity, to have
the Restrictive Covenants specifically enforced by any court, including, without
limitation, the right to seek entry against the Executive of restraining orders
and injunctions (preliminary, mandatory, temporary and permanent) against
violations, threatened or actual, and whether or not then continuing, of the
Restrictive Covenants, it being acknowledged and agreed that any such breach or
threatened breach will cause irreparable injury to the Employer and that money
damages will not provide an adequate remedy to the Employer.

     13.4  If any court determines that any of the Restrictive Covenants
contained in this Agreement, or any part thereof, are unenforceable because of
the duration or scope of such provision, the duration or scope of such
provision, as the case may be, shall be reduced so that such provision becomes
enforceable and, in its reduced form, such provision shall then be enforceable
and shall be enforced.

     14.  Term of Agreement

     14.1  The parties anticipate that this Agreement shall take effect on
October 23, 2000 and, in any event, it shall take effect no later than on
December 1, 2000. This Agreement shall continue unless terminated by mutual
written agreement of the parties or by:

     (a) the Executive's resignation of employment upon sixty (60) days prior
written notice of the Employer;

     (b) the Executive's death or the Executive's disability which extends
beyond six (6) consecutive months;

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     (c) termination of the Executive's employment by Employer for Cause (as
defined in Section 14.6 below) upon written notice to the Executive; or

     (d) termination of the Executive's employment by Employer without cause
upon written notice to the Executive.

     14.2  In the event of termination of this Agreement for any reason, the
Executive will be entitled to her base salary and benefits, including payment
for PTO time, accrued through the effective date of termination, and to
reimbursement of expenses reasonably and necessarily incurred in connection with
her employment prior to the effective date of termination. The Executive shall
not be entitled to any bonus payment unless she has remained employed by the
Employer for the entire year in which the bonus applies, without prejudice to
any rights set forth in Section 10.

     14.3  In the event of termination of this Agreement in accordance with
Section 14.1(d), and except as contemplated by Section 14.4, the Executive will,
in addition to the amounts contemplated by Sections 14.2, be entitled to the
Executive's base salary for a period of twelve (12) months from the effective
date of termination.

     14.4  If the Executive breaches the Restrictive Covenants set forth in
Sections 12 or 13, the Executive shall not be entitled to the severance payments
contemplated by Section 14.3.

     14.5  All payments and benefits paid under this Section 14 shall be subject
to applicable withholdings and shall be paid or provided in accordance with the
Employer's standard payroll practices and policies.

     14.6  For purposes of this Agreement, the term "CAUSE" for termination
shall mean the following:

     (a) any material breach of this Agreement by the Executive, any intentional
violation of the reasonable directions of the Board or of the Executive's
superiors, or any act of negligence with respect to the Executive's duties,
which the Executive fails to cure within fifteen (15) days of written notice
thereof from the Employer;

     (b) any intentional material misrepresentation or any intentional material
misconduct;

     (c) conviction of the Executive for theft, embezzlement or any other felony
or for any misdemeanor relating to fraud, dishonesty, embezzlement or other
misappropriation of property; or

     (d) the willful engaging by the Executive in illegal or grossly negligent
conduct.

     15.  Effect of Termination

     (a) Upon the termination of her employment under this Agreement howsoever
occasioned, the Executive shall forthwith:

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          (i) deliver to the Employer or its authorized representative:

               (A) all Confidential Information an all papers, records,
documents or other materials or whatsoever nature (including correspondence,
lists, notes, memoranda, plans, reports, drawings, tables, tapes, films,
photographs and charts) which may be in her possession or control and relate in
any way to the business, organization, transactions, accounts, finances or
affairs of the Employer, and no copies shall be retained by her other than a
copy of this Employment Agreement and any other documents relating to the
benefits received;

               (B) all other property of the Employer (including any car made
available to the Executive which shall be returned in good condition (ordinary
wear and tear excepted)) in the possession or under the control of the
Executive; and

               (C) a certificate confirming that she has done the foregoing; and

          (ii) resign from office as a director and officer of the Employer.

     (b) The Employer shall be entitled to deduct from any monies due to the
Executive any sums due from the Executive to the Employer.

     (c) The following provisions of this Agreement shall survive termination:
11, 12, 13, 14.2, 14.3, 14.4, 14.5, 15 and 16.

     16.   Miscellaneous

     16.1  This Agreement supersedes all previous agreements between the
Executive and the Employer, in relation to the matters addressed herein. Except
for the Employer's employee-related policies and plans (as they may be issued or
modified from time to time and to the extent that such issuances or
modifications do not contradict the terms hereof), this Agreement represents
the entire understanding between the parties hereto with respect to the subject
matter hereof. The Executive acknowledges and agrees that she has not entered
into this Agreement in reliance upon any representation, warranty or undertaking
which is not set out or referred to in this Agreement.

     16.2  The invalidity or unenforceability of any provisions of this
Agreement shall not affect the other provisions, and the Agreement shall be
constructed in all respects as if such invalid or unenforceable provisions were
omitted.

     16.3  Any notice required or permitted to be given under this Agreement
shall be sufficient if in writing and if delivered at the addresses first above
stated by: (a) personal delivery; (b) registered or certified mail, return
receipt requested; or (c) Federal Express or other similar nationally known
overnight delivery service.

     16.4  The rights and obligations of the Executive under this Agreement
shall inure to the benefit, and shall be binding upon, the successors and
assigns of the Employer, including any successors by merger, purchase or
otherwise. The Agreement may not be assigned by the Executive. Any attempted
assignment in breach of this provision shall be null and void.

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<PAGE>   9

     16.5  This Agreement shall be governed by the laws of the State of New
Jersey, except for its conflicts of law rules.

     16.6  This Agreement cannot be changed orally but only by an agreement in
writing signed by the party against whom enforcement of any waiver, change,
modification, extension or discharged is sought. No delay on the part of any
party in exercising any right, power or privilege hereunder shall operate as a
waiver thereof, nor shall any waiver on the part of any party of any such right,
power or privilege nor any single or partial exercise of any such right, power
or privilege, preclude any other or further exercise thereof or the exercise of
any such other right, power or privilege.

     16.7  The headings herein are for reference purposes only and shall not
affect in any way the meaning and interpretation of this Agreement.

     16.8  Any controversy or claim arising out of or relating to this
Agreement, or the breach thereof, shall be settled exclusively by arbitration in
New York, New York, in accordance with the Commercial Arbitration Rules of the
American Arbitration Association then in effect, and judgment upon the award
rendered by the arbitrator(s) may be entered in any court having jurisdiction
thereof.

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the day and year first above written.

APBIOTECH INC.                               SANDRA CARTIE

By: /s/ Andrew Carr                          /s/ Sandra Cartie
    -----------------------------------      -----------------------------------
Name:  Andrew Carr
Title: Chief Executive Officer

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<PAGE>   10
                                   EXHIBIT A

                      COMPETITORS LISTING BY BUSINESS AREA

<TABLE>
<CAPTION>
Separations                   Microanray                         Lab Products           Genomics           Drug Screening
<S>                           <C>                                <C>                    <C>                <C>
Life Technologies/BioSepra    Affymetrix/Genetic Micro Systems   Bio-Rad Laboratories   Beckman Coulter    NEN Life Science Products
Bio-Rad Laboratories          Agilent                            Perbio Science/Pierce  Surmodics          PerkunElmer/Wallac
Dyax/Biolage                  Cartesian Technologies             Chemdex                Caliper            PE Biosystems
Millipore Corporation         Gene Machines                      Clontech               Hyseq              Packard Bioscience
Pall Corporation              Genomic Solutions                  Cuno                   Incyte
PE Biosystems                 Invitrogen/Research                Fisher Scientific      Motorola
Merck KGaA                    Genetics                           Becton Dickinson       PE Biosystems
Tosoh Haas                    PE Biosystems                      Schleicher & Schuell
Sartorious                    Molecular Probes                   Invitrogen/Novex
Waters Corporation            BioRobotics (UK)                   Life Technologies
                              Protogene                          NEN Life Science
                                                                   Products
                              GSI Lumonics                       PE Biosystems
                              Axon                               Kodak
                              NEN Life Science                   Promega
                              Corning                            Qiagen Corporation
                              Sigma-Aldrich Corporation          Roche Molecular Biochem
                              Stratagene
                              Merck KgaA
                              Techne Corp/R & D Systems
                              Biosource
                              ICN
</TABLE>
<TABLE>
<CAPTION>
Genotyping Pharmacogenetics   Proteomics
<S>                           <C>
PE Corp                       Waters/Micromass
Orchid Biosciences            Bruker
Sequenom                      PE Sciex
Rapigene                      PE Biosystems
                              ThermoBioanalysis/Finnigan
                              Genetic Solutions
                              Protana
</TABLE><PAGE>   1
                                                                   Exhibit 10.19

                              EMPLOYMENT AGREEMENT

AGREEMENT made as of the 20th day of November, 1996, by and between PHARMACIA
BIOTECH INC., a Delaware corporation maintaining its principal offices at
800 Centennial Avenue, Piscataway, New Jersey 08854 (the "Employer" or the
"Company"), and ANDREW D. RACKEAR, an individual with an address of 105 Lincoln
Road, Westfield, N.J. 07090 (the "Employee").

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

     WHEREAS, the Employer desires to continue to retain the Employee's services
and the Employee desires to continue in the employ of Employer upon the terms
and conditions set forth in this Agreement; and

     WHEREAS, Employer and Employee desire to provide in this Agreement for
certain severance compensation to be paid to Employee in the event his
employment is terminated;

     NOW, THEREFORE, in consideration of the above premises and the mutual
covenants contained herein, the Employer and Employee mutually agree as follows:

1.   EMPLOYMENT

     (a)  The Employer hereby employs the Employee to serve as a corporate
          officer in a senior management position, with the current title of
          General Counsel and Employee does hereby accept such employment upon
          the terms and conditions set forth herein. Unless otherwise advised by
          Employer, the Employee shall report and be responsible to the Vice
          President, Legal of Pharmacia Biotech AB. The parties acknowledge that
          such employment is "at will".

                                       1

<PAGE>   2
     (b)  Employee shall devote his entire time, attention and energies to the
          business of Employer or companies affiliated with the Employer.
          Employee shall not during the term of this Agreement be engaged in any
          other business activities (except as otherwise agreed upon in writing
          by the parties) whether or not such business activity is pursued for
          gain, profit or other pecuniary advantage; however this shall not be
          construed as preventing the Employee from investing his assets in such
          form or manner as will not require any services on the part of the
          Employee in the operation of the affairs of the companies in which
          such investments are made nor result in a conflict of interest as to
          Employee's duties and obligations to Employer.

2.   COMPENSATION AND EMPLOYMENT BENEFITS

     (a)  Base Salary. As compensation for services rendered to the Employer
          during the term of this Agreement, the Employer shall pay the Employee
          in each then-current year an annual base salary ("Base Salary") of no
          less than his current annual salary of One Hundred Twenty Six Thousand
          Six Hundred Twenty Dollars ($126,620), payable in accordance with the
          standard payroll practices of the Employer (less all necessary
          withholdings and deductions for Social Security, federal and state
          income taxes).

     (b)  Annual Bonus. In addition to the Base Salary compensation, Employee
          shall be given an opportunity to earn an annual bonus in an amount to
          be determined at Employer's sole discretion, depending upon
          performance and objectives to be set by the Employer. The actual
          amount of each year's annual bonus shall be dependent on the extent to
          which the Employee attains one or more performance objectives annually
          set and agreed upon by the Employer. If no such objectives are agreed
          upon or none is attained, then no bonus shall be payable.

                                       2
<PAGE>   3

     (c)  Commencing on January 1, 1997, and January 1st of each calendar year
          during which this Agreement is in effect, Employer shall review
          Employee's Base Salary and bonus potential for possible increases. Any
          such increases shall be at the sole discretion of the Employer.

     (d)  Employer shall provide Employee with an automobile in accordance
          with the policies of the Employer.

     (e)  Employer will reimburse Employee for all reasonable and anticipated
          business expenses incurred by Employee in promoting the business of
          Employer upon presentation by Employee, from time to time, of an
          itemized account of such expenditures.

     (f)  Employee shall be entitled to all other fringe benefits as may be
          provided from time to time generally to employees of the Employer,
          including, without limitation, participation in Employer's pension,
          401(k), disability, medical insurance and life insurance plans.

3.   TERM OF AGREEMENT

     (a)  This Agreement shall be effective as of the date first above written
          and shall continue until terminated by:

          (i)   mutual written agreement of the parties;

          (ii)  the Employee's resignation of employment, death or disability
                which extends beyond six (6) months;

          (iii) termination of Employee's employment by Employer for Cause as
                defined in Section 3(c) below; or

          (iv)  termination of Employee's employment by Employer without Cause.

                                       3

<PAGE>   4

     (b)  If Employee is terminated without Cause by Employer, then Employee
          shall be entitled to receive the severance benefits which are
          specified in Article 4 below. The parties agree that said severance
          benefits are agreed upon as liquidated damages for any and all claims
          concerning Employee's employment and its termination by Employer,
          except claims to any right to vested pension and 401(k) benefits.

     (c)  For purposes of this Agreement, the term "Cause" for termination
          purposes shall include the following:

          (i)   any acts of gross misconduct on the part of the Employee with
                respect to his duties;

          (ii)  any flagrant act by the Employee in violation of the reasonable
                directions of Employee's superiors;

          (iii) conviction of Employee for theft, embezzlement or any other
                felony or misdemeanor relating to fraud, dishonesty,
                embezzlement or other misappropriation of property;

          (iv)  the willful and continued failure by Employee to substantially
                perform his duties with the Employer after written notice is
                given to Employee of such failure, if for thirty (30) days after
                receipt of such notice Employee continues to fail to perform;
                or

          (v)   the willful engaging by Employee of conduct which is
                demonstrably and materially injurious to the Employer.

     (d)  For purposes of this section "Willful" shall not include acts or
          omissions done in good faith and in reasonable belief that such acts
          or omissions were in the best interests of the Employer.

                                       4
<PAGE>   5

     (e)  In the event that the Employee is both (i) removed from his position
          within the Company, and (ii) not given a different position at a
          similar level with the Company or any of its affiliates or
          subsidiaries, then Employee may elect to treat such event as a
          "Constructive Termination" and receive the severance benefits as are
          provided for in Article 4 below; provided, however, that the Employee
          must first notify the Employer of the specific event(s) upon which he
          is claiming this "Constructive Termination" election and such event(s)
          must remain unchanged for thirty (30) days from the date the Employee
          has provided such notice to the Employer. If the event remains
          unchanged, the Employee shall be deemed to have received written
          notice of termination at the expiration of the thirty (30) day period,
          as required by paragraph 4(g). The Employee may elect to treat any
          relocation to a facility more than thirty-five (35) miles from the
          Employee's principal office as a Constructive Termination.

4.   SEVERANCE BENEFITS

     (a)  In the event (i) the Employee terminates this Agreement due to a
          "Constructive Termination" event as provided for in Section 3(e)
          above, or (ii) the Employer terminates the employment of Employee at
          any time without Cause, then the Employee's sole and exclusive relief
          and the agreed upon liquidated damages for such termination in lieu of
          any other severance or termination benefits or payments of any kind
          whatsoever, which are hereby expressly waived, shall be that the
          Employer shall be required to pay the Employee the following:

          (i)  his Senior Total Salary (as defined in Section 4(c) below) for a
               period of eighteen (18) months from the Employee's date of
               termination; and

          (ii) one hundred percent (100%) of the Employee's then-current annual
               bonus potential for any month the Employee works up to the
               effective date of termination. For example, if the Employee's
               effective date of termination is at the end of February, he will
               be entitled to receive

                                       5
<PAGE>   6

              two-twelfths (2/12) of the entire bonus he could have earned for
              that year. The Employee will be deemed to have worked for a
              particular month if his effective date of termination is after
              the fifteenth date of any month.

(b)  The parties acknowledge and specifically agree that these liquidated
     damages shall not be deemed or construed to be a penalty of any sort
     whatsoever. Additionally, the Employee acknowledges and agrees that such
     liquidated damages have been voluntarily and mutually agreed upon as
     sufficient consideration for any and all claims and damages of any nature
     whatsoever relating to his employment and its termination (including,
     without limitation, any and all claims concerning any manner of wrongful
     discharge, breach of contract, discrimination, or any other claim
     concerning the means, methods and purposes of Employee's termination), all
     of which are hereby expressly waived.

(c)  For purposes of this Article 4, the term "Senior Total Salary" shall mean
     the highest annual rate of Base Salary and Annual Bonus paid to the
     Employee in any year during the two (2) year period of time immediately
     prior to the Employee's date of termination.

(d)  During the 18-month period that the Employee is receiving any severance
     payments pursuant to Section 4(a) above, the Employee shall also be
     entitled to receive the following additional severance benefits:

         (i)  participation in the Employer's then-current life insurance and
              medical and dental insurance plans to the extent the Employee is
              not receiving any similar respective benefits from any
              subsequent employment;

         (ii) reasonable executive outplacement services (e.g., secretarial
              service, employment consults, etc.), at Employer's expense for
              up to one (1) year from the date of termination or until
              Employee commences new employment. Alternatively, upon
              termination Employee may elect to

                                       6

<PAGE>   7
               receive fifteen percent (15%) of his final annual Base Salary, in
               lieu of receiving any outplacement services;

         (iii) $15,000 in cash or, alternatively at Employee's option, a $15,000
               credit against the purchase of the Employee's then-current
               company car. The Employee may elect to purchase his company car
               at either fair market value or book value. The Employee must
               exercise his purchase option prior to the effective date of his
               termination. Any part of the $15,000 credit not used to purchase
               the car will be paid to Employee. If the Employee elects not to
               purchase his company car, he will return it to the Employer on or
               before his date of termination.

(e)  All payments and benefits paid under this Article 4 shall be made be in
     accordance with Employer's then-current standard policies and practices.
     Appropriate and required withholding and deductions for social security,
     federal and state income taxes, together with any other deductions
     authorized by Employee or required by law or court order shall be made and
     will reduce any gross amounts to be paid under this Agreement.

(f)  Other than as specifically set forth in Article 4(d)(i) and (ii), there
     shall be no offset or reduction for any salary or other compensation
     received by Employee from subsequent employment.

(g)  Employer shall provide Employee with at least sixty (60) days prior written
     notice of any Constructive Termination or termination without Cause. With
     respect to any Constructive Termination, the sixty (60) day notice period
     will be deemed to begin thirty (30) days after the Employee has provided
     notice to the Employer of an event which is claimed to constitute a
     Constructive Termination, if the event remains unchanged as set forth in
     Article 3(e). The Employee may request that his termination become
     effective before the sixty day period ends. In such event, the Employee
     shall be paid as if he were employed for the sixty day period.

                                       7
<PAGE>   8
     (h)  The Employee will receive a lump sum payment for any unused vacation.

5.   CONFIDENTIAL INFORMATION

     The confidentiality agreement signed by Employee at the commencement of the
     Employee's employment remains in effect and is incorporated herein and made
     a part of this Agreement. If requested by the Company, the Employee will
     execute any similar agreement prior to the termination of employment to
     protect against future disclosures of the Employer's confidential
     information.

6.   MISCELLANEOUS

     (a)  The invalidity or unenforceability of any particular provisions of
          this Agreement shall not affect the other provisions hereof, and
          the  Agreement shall be construed in all respects as if such invalid
          or unenforceable provisions were omitted.

     (b)  Any notice required or permitted to be given under this Agreement
          shall be sufficient if in writing to the respective party at the
          address indicated below, or at some other designated address, and if
          sent by (i) personal delivery, (ii) registered or certified mail,
          return receipt requested, or (iii) Federal Express or other similar
          nationally known overnight delivery service:

          (1)  To Employee, at the address indicated above, and

          (2)  To the Employer, (Attention: President) at its principal
               office, with a copy to the Pharmacia Biotech Inc. Law
               Department (Attn: General Counsel) at the same address.

     (c)  The rights and obligations of Employee under this Agreement shall
          inure to the benefit and shall be binding upon the successors and
          assigns of the Employer.

                                       8
<PAGE>   9

         including any successors by merger, purchase or otherwise. The
         Agreement may not be assigned by Employee. Any such attempted
         assignment shall be null and void.

    (d)  This Agreement has been made in the State of New Jersey. It shall be
         governed by the laws of the State of New Jersey and all disputes
         shall be resolved in the State or Federal Courts located in the State
         of New Jersey.

    (e)  This instrument contains the entire agreement of the parties with
         respect to the employment and termination of Employee and supersedes
         all prior agreements or arrangements between the parties concerning
         such subject matters. This Agreement cannot be changed orally but
         only by an agreement in writing signed by the party against whom
         enforcement of any waiver, change, modification, extension or
         discharge is sought.

The parties hereto have executed this Agreement as of the day and year first
above written.

EMPLOYEE                                          PHARMACIA BIOTECH INC.

/s/  Andrew D. Rackear                            /s/ Michael Woehler
--------------------------                        ---------------------------
     Andrew D. Rackear                                Michael Woehler
                                                      President

                                       9

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