固相萃取-气相色谱法测定茶叶中5种农药残留  

Mulit-residue determination of 5 pesticides in tea by SPE-GC

作　　者：黄琼辉[1] 李桂荣[1] 

机构地区：[1]福建省农产品质量安全检验检测中心,福建福州350003

出　　处：《福建农业学报》2006年第3期272-274,共3页Fujian Journal of Agricultural Sciences

摘　　要：采用弗罗里硅土固相柱净化方法，用配有电子捕获检测器的气相色谱仪，一次测定5种有机氯和拟除虫菊酯农药（α-666、β-666、γ—666、δ—666、pp’-DDE、op’-DDT、pp’-DDD、pp’-DDT、氯氰菊酯、氰戊菊酯、甲氰菊酯）的残留量。该方法的回收率在71．1％～88．o％．变异系数在0．7％～12．8％．最低检测限在0．04～2．70μg·L^-1。This paper reported a mulit-residue analysis of 5 kinds of pesticides （organochlorine and pyrethroid, （α-666、β-666、γ-666、δ-666、pp＇-DDE、op＇-DDT、pp＇-DDD、pp＇-DDT、, cypermethrin, fenvalerate, fenpropathrin） by ECD-GC. The results showed that the recoveries were in range of 71.1%-88.0%, the coefficients of variation were 0.7%-12.8% and minimum limits of detection were 0. 04-2.70μg·L^-1.

关 键 词：有机氯 拟除虫菊酯 农药残留 气相色谱 固相萃取 

分 类 号：O657.7[理学—分析化学]