2008•Journal of Guizhou Normal UniversityRequires access

Rapid determination of 9 kinds of organochlorine pesticide residues in soil by gas chromatography

Liu Han-lin

Abstract

Objective:To determine 9 organochlorine pesticides(OCPs) in soil by gas chromatography with electron capture detector.Methods:Samples were extracted with organic solvent using supersonic fluid extraction.The extracts were cleaned up by concentrated H2 SO4.The column was OV-1701(30m×0.32 mm×0.32μm).Results:The average recoveries were 84.7%～117.1% and RSD were 3.36%～7.65%.The OCPs of the soil are lower than environmental quality standard for soils(GB/T 14550-93).Conclusions:This method is rapid,simple and accurate.It can be used to determine organochlorine pesticides in soils.

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Key concepts: Electron capture detector, Gas chromatography, Organochlorine pesticide, Chromatography, Pesticide, Environmental chemistry, Soil water, Chemistry