Manpower Group Chemist - Intermediate in Chesterfield, Missouri


Residue Analytical Chemist (Contractor)


Regulatory Sciences Environmental Safety Team in St. Louis is seeking Residue

Analytical Chemist Contractor to support new and existing product registrations and product

stewardship for client's global agricultural chemical portfolio. A technical background in

laboratory sample preparation and mass spectral analysis of small molecules is required. This

role will focus on processing samples from various matrices (air samplers, soil, water, and plant)

for analysis, operating liquid handler instruments, and developing analytical methods.


 Prepare samples from various matrices (e.g., air samplers [PUF], water, soil, and plant) for

analysis via LC- or GC-MS/MS

 Support the development of analytical methods for trace analysis in various matrices

 Design and program liquid handlers to aid in preparing samples for mass spectral analysis

 Ensure liquid handler instruments are functioning properly, and troubleshoot instrumentation



Required Education and Skills/Experience:

 Minimum of a Bachelor degree in Analytical Chemistry or a related field of study

 Experience with wet chemistry sample preparation (e.g., extraction, LLE, SPE, concentration,

etc.) for instrumental analysis

 Hands-on experience in analytical method development with emphasis on liquid

chromatography-mass spectrometry (LC-MS/MS) based techniques.

 Candidate must be self-motivated and detail orientated

 Excellent oral/ written communication and interpersonal skills

 Agility to work on multiple projects/tasks

Desired Education and Skills/Experience:

 M.S. in chemistry or scientific field, or B.S. in chemistry or scientific field with 1 - 3 years of

industry experience

 Experience with utilizing and programing liquid handlers for high throughput sample


 Strong chromatographic and separation science skill sets

 Demonstrated effectiveness with continuous/process improvement

Please apply online OR email your resume to

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