Food Safety — Sensors, GC/MS, and Others

February 21, 2018

This Tuesday afternoon session opens with a presentation by Joan Stevens of Agilent Technologies, titled “Multiresidue Analysis of Pesticides in Cannabis-Infused Oil and Edibles by Various Extractions and Enhanced Matrix Removal Lipid Cleanup.” Stevens will discuss a method for selectively removing lipids from cannabis-infused food products for the analysis of pesticides.

Session 1780

Room 308C

8:30-11:25 a.m.

This Tuesday afternoon session opens with a presentation by Joan Stevens of Agilent Technologies, titled “Multiresidue Analysis of Pesticides in Cannabis-Infused Oil and Edibles by Various Extractions and Enhanced Matrix Removal Lipid Cleanup.” Stevens will discuss a method for selectively removing lipids from cannabis-infused food products for the analysis of pesticides.

Next, Yelena Sapozhnikova of the USDA will present a talk titled “High Throughput Residual Analysis of Pesticides and Environmental Contaminants in Poultry and Meats.” Her presentation will describe a fast, simple, high-throughput analytical method for simultaneous determination of 270 organic contaminants, with sample preparation based on QuEChERS extraction with acetonitrile. Other techniques used in the study include UHPLC–MS/MS and low-pressure GC–MS/MS.

The next presentation, to be given by Ruud Addink of Toxic Report LLC, is titled “Evaluation of a High Throughput, No DCM or Capital Equipment Sample Clean Up for POPs Analysis.” This talk will discuss how persistent organic pollutants in foods can be analyzed using a semiautomated system composed of a laboratory funnel filled with hexane or toluene, a solvent pump, and three prepackaged columns: silica, carbon, and alumina. Matrices such as eggs, feed, and oils were tested with the system.

Toshikazu Kawaguchi of Hokkaido University will then present a talk titled “SPR Immunosensing of Beta Agonist in Urine Sample.” The presentation will discuss the use of a surface plasmon resonance immunosensor for small-molecule detection with an indirect competitive inhibition immunoassay and a secondary immunoreaction.

Following a 15-minute break, Patricia L. Atkins of SPEX CertiPrep will give a presentation titled “Not Your Kid’s Apple Juice: An Examination of Arsenic Content in American and European Hard Ciders.” Her talk will discuss the analysis of arsenic in these popular drinks using microwave digestion and ICP-MS.

The penultimate presentation in the session, titled “Determination of Some Heavy Metals in Slippery Elm Bark Samples,” will be delivered by Jerzy Mierza of Tennessee State University. Herbal medicines derived from the inner bark of the slipper elm are used in both human and veterinary medicine, and it is important to know the concentration of heavy metals in these preparations. This presentation will describe the analysis of heavy metals using ICP-OES, GF-AAS, ATR-FTIR spectroscopy, and Raman spectroscopy.

The session’s final presentation will be given by Fausto Pigozzo of Thermo Fisher Scientific and is titled “Robust Dioxins Quantification and Conformation in Feedstuff Using Enhanced Sensitivity GC–MS/MS.” Pigozzo’s talk will discuss the performance of a GC–MS/MS approach using both solvent standards and food samples for the analysis of polychlorinated dibenzo-p-dioxins and dibenzofurans to satisfy regulatory requirements.