Get Kitted Widdit! Simplifying Core Spectroscopy with Streamlined Kits



Webinar Date/Time: Thu, Jan 18, 2024 11:00 AM EST

Become more comfortable with the theory of operation as well as the capabilities and limitations of common spectroscopy setups.

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Event Overview:

Pesticides play an important role in the agriculture and food industries to improve crop yield and food production. However, the quantity of pesticide residue remaining in or on commodities are tightly controlled to avoid contamination of the food chain and the environment. Therefore, regulatory agencies have set maximum residue levels (MRLs) for hundreds of pesticides and their metabolites. To check whether foods comply with these legal requirements, different analytical techniques are necessary to detect all pesticides that could be mandated for analysis. This webinar describes a comprehensive end-to-end workflow for the targeted quantitation of more than 1000 pesticides in tomato using GC/MS/MS and LC/MS/MS techniques with a common QuEChERS sample extraction protocol without further clean-up. The workflow performance was successfully evaluated according to the SANTE 11312/2021 guideline based on method sensitivity, limit of quantification, linearity, recovery, and repeatability using matrix-matched calibration standards for over 1000 pesticides.

Key Learning Objectives:

  • Understand why the right combination of sample preparation is critical in attaining meaningful pesticide residue results.
  • Learn how 1000 pesticides can be analyzed within 20 minutes instruments run times.
  • Learn how a dynamic MRM Method (dMRM) can improve the scope and efficiency of a multiresidue quantification.
  • Understand why the combination of GC/MS/MS and LC-MS/MS is necessary to determine all mandated pesticides.

Who Should Attend:

  • Private CRO food safety testing laboratories
  • Government food testing laboratories
  • Academic food science laboratories
  • Food Lab managers
  • Food Lab instrument operators


Derek Guenther
Senior Product Scientist
Ocean Optics

Derek GuentherSenior Product ScientistOcean Optics

Derek A. Guenther has a B.S. in chemical engineering from the University of South Florida with a minor in inorganic chemistry. His work at the USF Institute for Environmental Studies focused on development of novel silica-based algaecides targeting invasive species in Florida fresh waterways. His strengths and passions lie in new chemical sensor developments and spectral numerical processing. Derek has spent over 15 years at Ocean Optics developing and supporting the oxygen, pH, and SERS-based optical sensor products, as well as performing years of customer feasibility studies with the lab services team. Today, he works with the strategic marketing team to broadcast the excitement of spectroscopy out into the world.

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