摘要
目的：建立凝胶色谱串联质谱检测水果、蔬菜和谷物中75种农药残留的检测方法.方法：样品经乙腈提取,活性碳及氨基固相萃取小柱净化后,再经过在线GPC进入GC/MS进行检测,使相对检出限有了较大的提高.结果：相对偏差为0.9%～15.7%,回收率在55.8%～130.7%之间,检出限在0.01～0.05 mg/kg之间.结论：该方法能满足植物性食品中多种农药残留的筛选,具有灵敏、快速、重现性好的特点.
Objective：To set up a method for the determination of 75 pesticide residues in vegetable, fruits and corn by GPC -GC/MS. Methods：Samples were extracted with acetonitrile, then cleaned by ENVI -Carb and LC -NH2 cartridge. The measurement was performed with GPC - GC/MS in the wholly scan mode with large volume injection. Results. In comparison with conventional methods, the detection limits have been raised, relative standard deviation was 0. 9% - 15.7% , recovery was 55.8% 130. 7%, the limit of this method was 0. 01 - 0. 05 mg/kg. Conclusion：This method is suitable for the screening of 75 kinds of pesticide residues and is simple, rapid, accurate and practical.
出处
《中国卫生检验杂志》
CAS
2007年第8期1355-1358,共4页
Chinese Journal of Health Laboratory Technology
作者简介
杨惠琴（1966-）,女,大学,工程师,主要从事进出口食品检验工作.
