气相色谱-串联质谱测定蔬菜水果中克百威、3-羟基克百威和甲萘威残留  

Determination of Carbofuran, 3-Hydroxycarbofuran, Carbaryl in Vegetables and Fruits by Gas Chromatography Tandem Mass Spectrometry

作　　者：王丽敏[1] 张静恒[1] 喻秀[1] 方晓燕[1] 张蓉琴[1] 

机构地区：[1]成都市食品药品检测中心,成都610045

出　　处：《农药》2014年第4期269-271,275,共4页Agrochemicals

摘　　要：[目的]建立同时测定蔬菜水果中克百威、3-羟基克百威、甲萘威3种氨基甲酸酯类农药残留的气相色谱一串联质谱（GC—MS／MS）法。【方法】样品经乙腈提取后，氨基柱净化，采用多反应监测（MRM）模式进行测定。【结果】3种氨基甲酸酯农药在0．005-0．25mg／kg范围内线性关系良好（R2〉0．999）。空白基质样品在0．02-0．1mg／kg添加范围内，加标回收率为74-3％-84．3％，相对标准偏差为3．7％-15．0％，方法的检出限为0．002～0．004mg／kg。【结论】该方法操作简单、灵敏、准确，完全可满足蔬菜水果中3种氨基甲酸酯类农药残留量的测定及确认要求。[Aims] A gas chromatography tandem mass spectrometric （GC-MS/MS） method was established for determination of carbofuran, 3-hydroxycarbofuran, carbaryl in vegetables and fruits. [Methods] The samples were extracted with acetonitrile and cleaned-up by NH2 solid phase extraction （SPE） column. The analytes were detected by GC-MS/MS in multiple reaction monitoring mode （MRM）. [Results] Three carbamate pesticide residues had good linear relationships within the range of 0.005-0.25 mg/kg（R2 〉 0.999）. The average recoveries ranged from 74.3 to 84.3% at the spiked level of 0.02-0.10 mg/kg, with the relative standard deviations of 3.7-15.0%. The limits of detection were 0.002- 0.004 mg/kg. [Conclusions] The method is simple, high sensitivity and accurate, which can meet with the requirements for simultaneous determination and identification of three carbamate pesticide residues in vegetables and fruits.

关 键 词：气相色谱-串联质谱 克百威 3-羟基克百威 甲萘威 蔬菜水果 

分 类 号：O657.63[理学—分析化学] TS255.7[理学—化学]