Method for Multiresidue Determination of High Acute Toxicity Organophosphorous Pesticides in Vegetables

Abstract

Abstract: A method which combined solid phase extraction (SPE) and gas chromatography for multi-residue determination of organophosphorous pesticides in vegetables was discussed in this paper. Methamidophos, phoyate, omethate, chlorpyrifos, parathion-methyl and parathion were selected as the analytic targets representing toxic organophosphorous pesticides. Satisfac- tory results could be obtained as the recoveries were greater than 80%, the entire analytic time was no longer than 1h, and the detection limit ranged from 0.0184 mg/L to 0.0396mg/L. The method discussed could be applied for quick and accurate determination of organophosphorous pesticides in vegetables.

Key words: organophosphorous pesticides, multi-residuedetermination, SPE-GC, vegetables

CHEN Hao, LIU Xun-Cai, LI Sheng-Qing, CHEN Zhi-Dong. Method for Multiresidue Determination of High Acute Toxicity Organophosphorous Pesticides in Vegetables[J]. FOOD SCIENCE, 2005, 26(3): 204-208.

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Method for Multiresidue Determination of High Acute Toxicity Organophosphorous Pesticides in Vegetables

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