气相色谱-质谱法同时测定植物源食品中7种农药的残留量

SIMULTANEOUS DETERMINATION OF 7 RESIDUES IN THE PLANT ORIGINAL FOOD BY GC-MS

研究了用气相色谱-质谱法检测草莓和小麦中西玛津、阿特拉津、甲草胺、乙草胺、扑草净、禾草克和哒螨酮的残留量,样品经乙酸乙酯提取,Florisil固相萃取小柱净化,气相色谱-质谱法进行检测,各组分回收率为76.08～108.1,测定结果的相对标准偏差为3.9～10.2(n=6)。

A residues determination method of simazine, atrazine, alachlor,acetochlor, prometryn, quizalofop - ethyl and pyridaben in the plant original food by GC - MS was introduced. The sample was extracted by ethyl acetate, cleaned by Florisil SPE column, detected by GC - MS. Additive recoveries of the several pesticides were 76.08% - 108.1%, and the RSD were 3.9% - 10.2% （n =6）.