Title: Determination of Organochlorine Pesticides and Polychlorinated Biphenyls in Soils by Gas Chromatography with Accelerated Solvent Extraction
Abstract: The optimum extraction condition was studied for organochlorine pesticides and polychlorinated biphenyls in soils using accelerated solvent extraction (ASE).The sample was extracted with hexane/acetone (1:1,V/V) with extraction temperature of 100 ℃ and pressure of 10.3 MPa and cleaned up by solid phase extraction with Florisil column,followed by separation on a capillary column.The target organic pollutants were then quantitatively determined by gas chromatography using electron capture detection.The detection limits of the method was 0.69 ~ 1.85 ng/g and average recovery was 83.6% ~ 109.0% with precision of 1.11% ~ 5.88% RSD (n=11).The method is simple,efficient,economical and suitable for the analysis of organochlorine pesticides and polychlorinated biphenyls in soil samples.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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