吡虫啉在番茄和土壤上的残留动态  

Residual Dynamics of Imidacloprid In Tomato and Soil

作　　者：范志先[1] 许允成[1] 初丽伟[1] 陈丹[1] 侯志广[1] 尚梅[1] 王艳红[1] 

机构地区：[1]吉林农业大学测试中心,吉林长春130118

出　　处：《吉林农业大学学报》2003年第6期649-651,663,共4页Journal of Jilin Agricultural University

基　　金：农业部农药残留课题资助

摘　　要：采用Spherisoib 5μ-C18色谱柱建立以乙腈:水为流动相的高效液相色谱条件,测定了吡虫啉在番茄及土壤上的残留动态。结果表明:吡虫啉在番茄及土壤上的添加回收率分别为84％～120％,80％～100％;原始沉积量分别为0.12～0.22mg/kg,0.21～0.62mg/kg;半衰期(t_(1/2))分别为0.7～6.3d,8.2～25.0d。Residual dynamics of imidacloprid in tomato and soil were determined with HPLC, using a spherisorb 5μ-C18 column and acetonirile and water(30:70) as mobile phase.A method for the pretreatment and analysis of samples was established. The results showed that recoveries of imidacloprid in soil and in tomato varied from 80% to 120% ; half-life of imidacloprid was 8.2～21d.

关 键 词：吡虫啉 番茄 土壤 药物残留 残留动态 液相色谱法 杀虫剂 康福多浓可溶剂 

分 类 号：S482.3[农业科学—农药学] S481.8[农业科学—植物保护]