【摘要】 建立了人参、黄芪中有机氯农药残留量的气相色谱分析方法,对六六六和滴滴涕各四种异构体、五氯硝基苯的残留进行了测定.样品以正己烷提取,提取液以浓硫酸磺化后直接进行测定.选用BPX-608毛细管柱,GC-ECD检测了9种农药的残留量.方法的最小检出量为5×10-13~1.0×10-12g;加样平均回收率为92.92％~99.13％;RSD为0.70％~4.77％更多还原

【Abstract】 The capillary gas chromatographic method was introduced for determining organochlorine pesticide residues in ginseng and radix astragali. The organochlorine pesticide were extracted from herb with n-hexane, cleaned up by concentrated H2SO4 and separated by capillary column with electron capture detector. The capillary column was BPX-608. The detective limit range from 5×10-13-5×10-12g. The average recoveries were within 92. 92%-99. 13% and RSD was 0. 70%-4. 77%.更多还原