Features of sample preparation in determining pesticide residues in soils with different organic matter content by gas-liquid chromatography

Abstract

Studies have been conducted on the development of methods for sample preparation of soil samples with different organic matter content when determining pesticide residues of chemical classes: triazinones, sym-triazines, nitro-xylidines, phenyl-carbamates, pyrrolidones, toluidines by gas-liquid chromatography. A scheme for sample preparation of soil samples with different organic matter content (2, 30, 70 %) is presented, the extraction of the studied active substances was 75.7–97.3 %.