【摘 要】
：
采集农田中表层、里层、深层土壤,采用正己烷:丙酮=1:1(V/V)作为提取剂[1,2],土壤样品于Florisil柱中净化,浓缩定容后,用电子捕获检测器检测,石英毛细管柱气相色谱法测定,用
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采集农田中表层、里层、深层土壤,采用正己烷:丙酮=1:1(V/V)作为提取剂[1,2],土壤样品于Florisil柱中净化,浓缩定容后,用电子捕获检测器检测,石英毛细管柱气相色谱法测定,用外标法定量.以农田表层土壤测定结果为例,甲氰菊酯的回收率为85.2%～102.7%,RSD为2.27%～5.41%;氯氰菊酯的回收率为80.5%～102.7%,RSD为2.84%6.70%;氰戊菊酯的回收率为 80.2%～103.0%,RSD为2.33%～5.95%;溴氰菊酯的回收率为80.8%～102.7%,RSD 为2.45%～6.24%.方法简便、快速、成本低.
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