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Determination of organochlorine pesticides residues in Radix Astragali formula granule by GC
Pages: 687-691
Year: Issue:  5
Journal: Journal of Southwest University for Nationalities(Natrual Science Edition)

Keyword:  黄芪配方颗粒有机氯农药农药残留气相色谱;
Abstract: 目的:测定黄芪配方颗粒剂中9种有机氯农药残留量.方法:样品用水浸润过夜,以丙酮、二氯甲烷超声提取,提取液经浓硫酸净化,用DB-1701P弹性石英毛细管柱分离样品,GC-ECD测定有机氯农药的残留量.结果:9种有机氯农药线性回归方程的相关系数在0.9992~0.9997范围之内,线性关系良好,方法的平均回收率为75.6%~114.5%,RSD为3.5%~7.0%.结论:本方法快速、简便、准确,且成本较低.
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