【摘要】 目的:以加速溶剂萃取技术和凝胶渗透色谱法处理样品,建立气相色谱法测定黄豆中有机氯和拟除虫菊酯类农药多组分残留的方法。方法:样品经加速溶剂萃取,凝胶渗透色谱净化,浓缩后由气相色谱法测定,进行准确度、精密度及线性试验。结果:α-HCH、β-HCH、γ-HCH、δ-HCH、ρ,ρ′-DDE、O,ρ′-DDT、ρ,ρ′-DDD、ρ,ρ′-DDT、氟氯氰菊酯、氯氰菊酯、氰戊菊酯、溴氰菊酯的检测限范围为0.357-7.468μg/kg,回收率在78.4%-116.0%之间,相对标准偏差均小于8.0%。结论:方法快速简便,回收率、精密度较好,符合检测要求,适合于豆类食品中多种有机氯和拟除虫菊酯类农药的测定。更多还原

【Abstract】 Objective:To develop a method to determine organchlorine and pyrethroid pesticide multi-residues in soybean by gas chromatography (GC).Methods:Samples were extracted by ASE.Then the extract was analyzed by GC after being cleaned up by GPC.Results:The limits of detection for α-HCH,β-HCH,γ-HCH,δ-HCH,ρ,ρ′-DDE,O,ρ′-DDT,ρ,ρ′-DDD,ρ,ρ′-DDT,cyhalothrin,cypermethrin,fenvalerate,deltamethrin ranged from 0.357 to 7.468 μg/kg.The recoveries were between 78.4% to 116.0%.The RSD% was less than 8.0%.Conclusion:The method has better accuracy and recovery and is suitable for determining organochlorine and pyrethroid pesticide multi-residues in soybean.更多还原