Food Safety Summit
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Calendar IconTuesday, May 11, 2021Time Icon11:30 AM- 12:00 PM central time
Soultions Stage Presentation

Open to all registered attendees

Strategies for Improving Sample Clean-up During the Analysis of Persistent Organic Pollutants (POPs) by Gas Chromatography

Sample preparation for extraction of persistent organic pollutants (POPs) for gas chromatography analysis can be challenging, especially in samples with high fat content. Extraction methods targeting nonpolar compounds such as pesticides, PCBs, and PAHs tend to generate extracts that are highly contaminated with fatty matrix, causing several problems with the subsequent chromatographic analysis. Traditional clean-up techniques, such as gel permeation chromatography (GPC) and normal phase column chromatography can be very effective but are often expensive and time consuming.

In this presentation, we will address an alternative approach to the clean-up of matrices with significant fat content using a family of sorbents that effectively retain fatty components. Applications related with analysis of pesticides, PCBs, and PAHs in fatty foods using QuEChERS and unique solid phase extraction (SPE) cartridges will be presented.

Deyny Mendivelso-Pérez
Senior R&D Scientist, sample preparation
MilliporeSigma

Deyny is a senior R&D scientist at MilliporeSigma (Bellefonte, PA, USA) for the Sample Preparation group with focus in GC and GC/MS applications, and development of coatings and applications for solid phase microextraction. Deyny holds a PhD in Analytical Chemistry from Iowa State University, a specialization in Environmental Chemistry and BS in Chemistry from Industrial University of Santander (Colombia).


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