气相色谱法检测茶叶中噻嗪酮(优乐得)和菊酯类农药的残留量  

Residual Determination of Buprofezin and Chrysanthemum Ester Pesticides in Tea by GC

作　　者：于萍萍[1] 谢涛[1] 唐文 张进忠[3] 

机构地区：[1]西南大学资源环境学院,重庆400716 [2]四川省南充炼油化工总厂,四川南充637000 [3]重庆市农业资源与环境重点实验室,重庆400716

出　　处：《山东农业科学》2007年第3期99-101,共3页Shandong Agricultural Sciences

基　　金：中国博士后科学基金资助项目"茶叶中菊酯类农药残留的发生与代谢机理研究"(No.2005038158)

摘　　要：利用配有电子捕获检测器（ECD）的气相色谱仪测定了茶叶中噻嗪酮（优乐得）、甲氰菊酯、氰戊菊酯、联苯菊酯的残留,结果4种农药的检出限量分别为0.01、0.01、0.05、0.01 mg/kg,加标回收率分别为86.0%-100.5%、84.7%-99.3%、83.3%-100.2%、87.3%-100.5%,且变异系数均在2.1%-4.6%范围内,表明该方法的准确度、灵敏度、精密度均较高。The residual contents of Buprofezin, Fenpropathrin, Fenvalerate and Bifenthrin in tea were determined by GC with ECD. The results showed that their detection limits were 0.01 mg/kg, 0.01 mg/kg,0. 05 mg/kg and 0.01 mg/kg,respectively. Their recovery rates were 86.0-100. 5%, 84. 7-99.3% ,83. 3%-100. 2% and 87. 3%-100. 5% ,respectively,and their variation coefficients were in 2. 1-4.6%. So the accuracy,sensibility and precision of this method was higher.

关 键 词：气相色谱 茶叶 残留 菊酯类农药 噻嗪酮(优乐得) 

分 类 号：S571.1[农业科学—茶叶生产加工] O657.71[农业科学—作物学]