茶叶中拟除虫菊酯类农药残留的检测  

Determination of pyrethroid residues in tea

作　　者：杨广[1] 程章平 刘新[3] 尤民生[1] 

机构地区：[1]福建农林大学应用生态研究所,福建福州350002 [2]闽侯县农业局植保检验站,福建闽候350100 [3]福建省农业厅农药检定所,福建福州350003

出　　处：《福建农林大学学报（自然科学版）》2004年第3期339-342,共4页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：福建省科技厅重大资助项目(2003S007);国际科技合作重点项目(2003DF030008);国家高技术产业发展项目[发改高技(2003)1933].

摘　　要：比较了GC FID、GC MS和GC MS/MS对茶叶样品中拟除虫菊酯类农药残留的检测结果,发现GC FID可检出氯氰菊酯、氰戊菊酯和溴氰菊酯,GC MS没检测出任何农药残留,GC MS/MS检测出溴氰菊酯,但含量小于GC FID的检测结果.故可推断,茶叶提取液含杂质多,影响了GC FID和GC MS的检测结果,而GC MS/MS可不受影响而得到正确的检测结果.The determinations of pyrethroid residues in tea by means of GC-FID, GC-MS and GC-MS/MS were compared. The result showed GC-FID could determine cypermethrin of envalterate and deltamethrin in the tea sample, GC-MS could not determine any pyrethroid, and GC-MS/MS could determine deltamethrin with less concentration than GC-FID. It was concluded that the determination of pyrethroid residues in tea by means of GC-FID and GC-MS was disturbed by the complex substrates in the tea samples and GC-MS/MS could avoid the interference of these substrates and achieve the correct determination.

关 键 词：茶叶 拟除虫菊酯 农药残留 GC-MS 气相色谱仪 

分 类 号：S481.8[农业科学—农药学] S482.35[农业科学—植物保护]