毛细管气相色谱法测定棉籽中丙硫克百威及其代谢物残留

A Method for Residue Analysis of Benfuracarb and Its Metabolites in Cotton Seeds by Bored-Capillary GC

研究超声波提取、大口径毛细管气相色谱配氮磷检测器 (NPD) ,检测棉籽中丙硫克百威及其代谢物残留。各组分回收率 83%～ 110 % ,线性范围 10 3,最低检出浓度 0 .0 2～ 0 .0 1mg/kg。本方法具有简单、快速、省试剂的特点。

Benfuracarb and its metabolites in cotton seeds were extracted and analysed at the same time by GC,using ultrasonic extraction and wide-bore capillary column,which saves time and reagent greatly.The recovery for all components was 78-92%, the liner range was 10 3 and the determination limit of the method was 0.01～0.02mg/kg.