食品科学 ›› 2013, Vol. 34 ›› Issue (10): 219-222.doi: 10.7506/spkx1002-6630-201310048

• 分析检测 • 上一篇    下一篇

分散固相萃取-气相色谱-质谱联用法快速检测蔬菜中18种农药残留

曹殿洁,黄信龙   

  1. 1.安徽新华学院药学院,安徽 合肥 230088;
    2.合肥周谷堆农产品批发市场农产品质量安全检测中心,安徽 合肥 230009
  • 收稿日期:2012-08-06 修回日期:2013-03-28 出版日期:2013-05-25 发布日期:2013-05-07
  • 通讯作者: 曹殿洁 E-mail:caojiediandian@163.com
  • 基金资助:

    安徽省教育厅优秀人才基金项目

Rapid Determination of 18 Pesticides Residues in Vegetables by QuEChERS Cleanup and GC-MS

  1. 1. College of Pharmacy, Anhui Xinhua University, Hefei 230088, China;2. Quality and Safety of Agricultural Products
    Testing Center, Hefei Zhougudui Agricultural Products Whol-Esale Market, Hefei 230009, China
  • Received:2012-08-06 Revised:2013-03-28 Online:2013-05-25 Published:2013-05-07

摘要:

建立测定蔬菜中常用18种农药的简便、快速的气相色谱-质谱联用多残留检测方法。以乙腈提取样品,伯仲胺(PSA)分散净化,使用气相色谱-质谱仪以选择离子监测模式进行分析测定。在设定色谱条件下,18种农药在0.036~0.36mg/kg范围内线性良好,添加0.05、0.1mg/kg农药混合溶液的平均回收率在75%~117%之间,检测限在1.0~14.8μg/kg范围内。本方法操作方便、重现性良好,为检测蔬菜中农药多残留提供可靠的分析方法。

关键词: 分散固相萃取, 气相色谱-质谱法, 蔬菜, 农药残留

Abstract:

A simple and rapid method was developed to determine 18 pesticide residues in vegetables by GC-MS.
Pesticides were extracted with acetonitrile and cleaned up by dispersive solid phase extraction using primary secondary
amine and analyzed by GC-MS under selective ion monitoring mode. Under the optimal chromatographic conditions, a good
linear relationship was obtained in the concentration range of 0.036 to 0.36mg/kg. Average recoveries of the pesticides in
blank matrix spiked at 0.05 mg/kg and 0.1 mg/kg ranged from 75% to 117%. The limits of detection for 18 pesticides were
in the range of 1.0 to 14.8 μg/kg. This method is simple and reproducible and can offer a reliable analytical approach for
determining pesticide multi-residues in vegetables.

Key words: dispersive solid-phase extraction, gas chromatography-mass spectrometry (GC-MS), vegetables, pesticide multi-residue

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