Journal of Food, Agriculture and Environment
Vol 9,
Issue 1,2011
Online ISSN: 1459-0263
Print ISSN: 1459-0255
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Analysis of chlorpyrifos and TCP residues in agricultural soil and apples by HPLC
Author(s):
Qingming Zhang 1, 2,
Lusheng Zhu 1*, Chang Han 1, Jun Wang 1, Hui Xie 1, Jinhua Wang 1, Shujuan Sun 1Recieved Date: 2010-11-14, Accepted Date: 2011-01-20
Abstract:In the present work, a method for the analysis of the residues of chlorpyrifos and its toxic metabolite 3,5,6-trichloro-2-pyridinol (TCP) in agricultural soil and apples was developed. The residues of chlorpyrifos and TCP were extracted from agricultural soil and apple samples by shaking followed clean-up by liquid-liquid extraction (LLE) and solid-phase extraction (SPE) coupled with detection of high-performance liquid chromatography (HPLC). Under the optimum conditions, the average recovery of chlorpyrifos and TCP with concentrations of 0.1-1.0 mg kg-1 from soil samples was 92.9-100.3% and 95.7-97.6%, respectively, and the relative standard deviation was 3.7-14.8% and 2.8-13.5%, respectively. The average recovery of chlorpyrifos and TCP from apple samples was 88.9-93.3% and 91.5-97.5%, respectively, and the relative standard deviation was 3.6-15.1% and 2.3- 12.3%, respectively. In conclusion, the proposed method can be successfully applied for the determination of chlorpyrifos and TCP residues in soil and apple samples.
Keywords:Organophosphate insecticides,
metabolite, solid-phase extraction, HPLCJournal: Journal of Food, Agriculture and Environment
Year: 2011
Volume: 9
Issue: 1
Category: Environment
Pages: 659-662
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