FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (24): 351-354.doi: 10.7506/spkx1002-6630-200924078

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Simultaneous Determination of 8 HCH and DDT Residues in Soybean and Soybean Products with ASE-GPC Coupled with Gas Chromatography

WEI Dong-xu1,2,JIANG Lian-zhou1,3,* GUO Wei1,MENG Bing-bing2,HU Shao-xin1   

  1. 1. School of Food, Northeast Agricultural University, Harbin 150030, China;
    2. Inspection and Quarantine Center, Heilongjiang Entry-Exit Inspection and Quarantine Bureau, Harbin 150001, China;
    3. National Research Centre of Soybean Engineering and Technology, Harbin 150086, China
  • Received:2008-12-23 Revised:2009-08-13 Online:2009-12-15 Published:2010-12-29
  • Contact: JIANG Lian-zhou1,3,* E-mail:jlzname@163.com

Abstract:

A method for the determination of 8 HCH and DDT in soybean and soybean products was established with accelerated solvent extraction (ASE), auto gel permeation chromatography purification (GPC) and gas chromatography quantification. The calibration curves presented good linear relationship in the range of 0.005-0.100 mg/kg, and the correlation coefficients were above 0.9990 for all compounds. Recoveries of all added were 78.3%-107.6% respectively, and relative standard deviations (RSD) were 2.1%-5.5% with spiked at 0.005, 0.020, 0.050 mg/kg of HCH and DDT in blank samples. The limit of detection of the method were 0.2 - 1.8μg/kg. The method was of good reproducibility, high sensitivity, shorter analysis time, and its performance could meet the requirements of the domestic and international legislation.

Key words: soybean and soybean products, accelerated solvent extraction (ASE), gel permeation chromatography (GPC), gas chromatography (GC), hexachlorocyclohexane (HCH), dichlorodiphenyl trichloroethane (DDT)

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