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复合柱净化法分析生物试样中残留的有机氯农药

Environmental Protection of Chemical Industry(2006)

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Abstract
用复合柱净化法分析生物试样中残留的有机氯农药,采用复合柱将少量硫酸含量较低的硅胶放在适量的硫酸含量较高的硅胶上,并将去活化硅胶复合在同一根柱子内,有效地避免了浓缩后的提取液与硫酸含量较高的硅胶直接接触时发生的板结现象。该方法对生物试样中8种有机氯农药六六六和滴滴涕的净化效果较好,当农药六六六和滴滴涕的标准加入量为200μg/kg和50μg/kg时,各目标物的平均回收率为63.9%~79.8%,相对标准偏差为5.6%~12.8%,检出限为0.001~0.040μg/kg。
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Key words
dichlorodiphenyltrichoroethane,biological sample,organochlorine pesticide,analytical method,benzene hexachloride,composite column
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