分析测试学报2012，Vol.31Issue(11)：1358-1364,7.DOI:10.3969/j.issn.1004-4957.2012.11.003
气相色谱-质谱联用法测定动物源食品中的杀虫脒及其代谢物残留
Determination of Chlordimeform and Its Metabolite 4-Chloro-2-methylaniline Residues in Animal Derived Foods by Gas Chromatography-Mass Spectrometry
谢建军 1陈捷 1何曼莉 1袁震宇 1孙灵慧1
作者信息
- 1. 广东出入境检验检疫局,广东广州510623
- 折叠
摘要
Abstract
A method was established for the determination of chlordimeform and its metabolite 4-chlo-ro-2-methylaniline residues in foods of animal by GC - MS. Five kinds of foods derived from animal ( e. g. tilapia muscle, chicken liver, pork, shrimp and beef ) were extracted with ethyl acetate in alkaline conditions(pH≥ll. 0). The extracts were purified with the graphitization carbon black cartridge (GCB SPE, 250 mg/3 mL) and neutral alumina solid phase cartridge (Al2 O3 SPE, 2.0 g/3 mL) , and then determined by GC - MS. Good linear relationships were obtained between the peak areas and the concentrations of chlordimeform and its metabolite 4-chloro-2-methylaniline within the range of 10 -500 μg/L, with correlation coefficients of 0. 999 1 and 0. 998 7, respectively. The recoveries were in the ranges of 81% - 119% for chlordimeform, and 80% - 119% for 4-chloro-2-methylaniline, with RSDs(n =6) of 1. 1% -11.7% and 2.0% - 13.7% , respectively. The results showed that the quantitation limits for the two compounds were both 10. 0 |xg/kg. The proposed method was accurate, sensitive and high-efficient, and was applicable in the determination of chlordimeform and its metabolite in animal derived foods.关键词
杀虫脒/4-氯邻甲苯胺/气相色谱-质谱联用法/动物源食品Key words
chlordimeform/ 4-chloro-2-methylaniline/ gas chromatography mass spectrometry ( GC - MS) / animal derived foods分类
化学化工引用本文复制引用
谢建军,陈捷,何曼莉,袁震宇,孙灵慧..气相色谱-质谱联用法测定动物源食品中的杀虫脒及其代谢物残留[J].分析测试学报,2012,31(11):1358-1364,7.
