安徽农业科学2011，Vol.39Issue(23)：14387-14388,14391,3.
糙米中丁硫克百威及其代谢物的残留测定
Determination on Residues of Carbosulfan and Its Metabolites in Brown Rice
摘要
Abstract
[Objective]The study aimed to monitor and estimate the residues of carbosulfan and its metabolites carbofuran and 3-hydroxycar-bofuran in brown rice. [ Method] A method was established for the simultaneous determination of carbosulfan and its metabolites carbofuran and 3-hydroxycarbofuran in brown rice by gel permeation chromatography (GPC) purification and gas chromatography-mass spectrometry (GC-MS) detection. The tested pesticides components to be measured in the samples were extracted by using the mixed solvent of ethyl-acetate and cyclohexane (1:1,V/V), purified by GPC and neutral Al2O, solid phase extraction (SPE) , and finally detected by GC-MS. [Result]The lowest limit of detection ( LOD) was 2.0 × 10-11 g for carbosulfan and carbofuran and 1.0 × 10 -l0 g for 3-hydroxycarbofuran. The lowest quantification limit was 0. 1 mg/kg for three compounds. The average recovery of each components was 77.8% -94.6% with the relative standard deviation (RSD) of 3.86% -6.58%. [ Conclusion] The sensitivity, accuracy and precision of the GPC purification and GC-MS detection method for determining the residues of carbosulfan and its metabolites carbofuran and 3-hydroxycarbofuran in brown rice ave all accord with the demands of the pesticide residue analysis, and it is suitable to detect the residues of carbosulfan and its metabolites in brown rice.关键词
丁硫克百威/凝胶渗透色谱/气相色谱质谱法/糙米/残留Key words
Carbosulfan/ Gel permeation chromatography/ Gas chromatography-mass spectrometry/ Brown rice/Residue分类
农业科技引用本文复制引用
陈莉,贺敏,余苹中,贾春虹,赵尔成,朱晓丹..糙米中丁硫克百威及其代谢物的残留测定[J].安徽农业科学,2011,39(23):14387-14388,14391,3.基金项目
农业部农药安全性监测项目 （）
北京市农林科学院青年基金项目(QN201104). （QN201104）
