甲基异柳磷在土壤中的残留降解分析
Anhui Agricultural Science Bulletin(2016)
Abstract
该实验应用气相色谱法测定了土壤中的甲基异柳磷的残留降解情况,以丙酮-正己烷(2∶1,V/V)为提取剂,氮吹仪浓缩定容,经气相色谱外标法定量测定。结果表明,当添加水平为0.05mg/kg时,甲基异柳磷在土壤中的回收率为91.33%,添加水平为0.1mg/kg时回收率为100.5%;添加浓度0.1mg/kg的甲基异柳磷在土壤中半衰期为9.58~11.27d。
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