单甲脒残留量的气相色谱分析  

Analysis of Acaricide Danjiami Residue by Gas Chromatograptay

作　　者：陆贻通[1] 薛玉中[1] 徐进[1] 

机构地区：[1]浙江省农业厅环保站

出　　处：《上海环境科学》1992年第12期25-26,24,共3页Shanghai Environmental Sciences

基　　金："七五"国家科技攻关项目38-3-5

摘　　要：以气相色谱法分析水果和土壤中单甲脒的总残留量。单甲脒及其代谢物先水解成2.4—二甲苯胺,经石油醚萃取,酸碱液液分配净化,七氟丁酸酐衍生化后,用带有电子捕获检测器的气相色谱仪检测。柑桔和土壤中单甲脒的最低检测浓度分别为1ppb和5ppb。单甲脒的添加浓度在0.25～2.0ppm范围内,在柑桔和土壤中的平均回收率分别为82.4％±5.4％和82.8％±2.3％。Method for determining total danjiami residue in citrus and soil was described. Danjiami and its metabolites were hydrolysed to 2,4-dimethylaniline then extracted with petroleum ether, cleaned up acid base partition and derivation to heptafluorobuty aldebvde and then quantitated by electron capture gas chromatography. Detection limits were 5 ppb for citrus pulp and soil, 1 ppb for citrus peel. Recovery rate of control samples fortified with danjiami at 0.25—2.0ppm, averaged 82.4％ for citrus and 82.8％ for soil.

关 键 词：单甲脒 残留量 气相色谱 

分 类 号：X592.02[环境科学与工程—环境工程]