For regulatory metabolism studies of agrochemicals in plants, animals and soil, characterization of residues in the sample from the test substance is of interest. Matrices are typically characterized using extraction techniques to solubilize the residues. Selection of extraction methods improving extraction recovery contributes a qualified study of the nature of residues for the agrochemical regulation. The solid samples for this test were pulverized wheat forage grown in soil applied with a radioactive 14C-agrochemical. The samples were extracted with acetonitrile and water using three different instrumental extraction methods: Ultra-Turrax® homogenizer, Geno/Grinder® homogenizer, and conventional Wrist-action® Shaker. Data will be included that shows extractability of sample with Geno/Grinder is influenced by number and size of stainless steel balls used in the extraction process. EAG Laboratories-Hercules will present a comparison of these extraction techniques in terms of extractability, extraction time, laboratory cost, and high-throughput sample preparation approaches.

Improved extraction techniques for regulatory metabolism studies of agrochemicals

256th National Meeting (2018)

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