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作 者:赵颖[1] 刘瑜[1] 金雁[1] 蒋施[1] 徐宜宏[1] 钟钰[1] 曾凡[1] 吕红英[1] 李梅[1]
出 处:《分析试验室》2011年第12期59-65,共7页Chinese Journal of Analysis Laboratory
摘 要:建立了乙腈:丙酮(3:7,V/V)混合溶液提取,CARB/NH2固相萃取柱净化,气相色谱-质谱(GC-MS)同时测定中草药保健食品中41种有机磷和氨基甲酸酯类农药残留,外标法定量。方法的检出限为0.01~0.05 mg/kg,回收率为62.2%~114.9%,相对标准偏差为4.5%~15%。方法适用于多种农药残留的同时检测。A method has been established for the simultaneous determination of 41 pesticide residues of organophosphorus and carbamates in Chinese Herbal Health Food by gas chromatography-mass spectrometry(GC-MS) with a external standard method.The samples were extracted with mixed solution of acetonitrile/acetone(3:7,v/v) and purified by CARB/NH2 solid phase extraction column.The limits of detection(LOD) were 0.01 mg/kg to 0.05 mg/kg.The recoveries ranged from 62.2% to 114.9% and the relative standard deviations ranged from 4.41% to 14.6%.This method is simple,accurate and applicable to multi-pesticides analysis.
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