快速溶剂萃取/气相色谱法分析土壤中的有机氯农药

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采用快速溶剂萃取/气相色谱技术建立了土壤中13种有机氯农药的检测方法,土壤样品使用快速溶剂萃取提取,以丙酮/正己烷为提取溶剂,然后使用硅酸镁固相萃取小柱进行净化,待测物在具电子捕获检测器的气相色谱仪上分析。13种有机氯农药标准曲线相关系数均大于0.9990,最低检出限可以达到0.03~0.11μg/g,实际样品回收率63%~108%。
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