介绍了土壤中有机氯农药残留分析用标准样品的制备方法.土壤样品经风干、研磨、筛分、混匀后装瓶.样品经索氏提取、弗罗里硅土小柱净化后,采用气相色谱-质谱法对残留的有机氯农药进行测定.结果表明,采自沈阳地区的土壤中的有机氯农药含量分布较为均匀,是一种理想的环境标准样品候选物样品.该研究为土壤中有机氯农药残留分析用标准样品的研制奠定了基础.
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