应用化学 ›› 2009, Vol. 26 ›› Issue (10): 1222-1226.

• 研究论文 • 上一篇    下一篇

表面解吸化学电离质谱法快速检测蔬菜中痕量氨基甲酸酯

梁华正1,杨水平1,郇延富2,张燮1,陈焕文1,2,刘清3,刘清珺3,郑健3   

  1. (1.东华理工大学应用化学系 抚州 344000;2.吉林大学化学学院 长春 130021;3.北京市理化分析测试中心 北京)
  • 收稿日期:2008-09-27 修回日期:2008-12-04 出版日期:2009-10-10 发布日期:2009-10-10
  • 通讯作者: 陈焕文,男,博士,教授; E-mail:chw8868@gmail.com; 研究方向:分析化学
  • 基金资助:
    国家自然科学基金(20505003)和江西省自然科学基金(2007GZN0465)资助项目

Determination of Carbamate Pesticides on Vegetables by Surface Desorption Atmospheric Pressure Chemical Ionization Tandem Mass Spectrometry

LIANG Hua-Zheng1, YANG Shui-Ping1, HUAN Yan-Fu2, ZHANG Xie1, CHEN Huan-Wen1,2, LIU Qing3, LIU Qing-Jun3, ZHENG Jian3   

  1. (1.Department of Applied Chemistry,East China Institute of Technology,Fuzhou 344000;
    2.College of Chemistry,Jilin University,Changchun 130021;
    3.Beijing Center for Physical and Chemical Analyses,Beijing)
  • Received:2008-09-27 Revised:2008-12-04 Published:2009-10-10 Online:2009-10-10

摘要:

采用自行研制的表面解吸常压化学电离源(SDAPCI),首次在无需样品预处理的前提下用质谱法直接测定了多种蔬菜表面残留的痕量氨基甲酸酯,并用串联质谱对所获得的不同氨基甲酸酯农药的离子进行了结构鉴定,排除了检测结果的假阳性。该方法对待测样品无污染,方法检测限低于10-14g/cm2,单个样品的测定时间平均少于1 s,特别适合于对批量样品进行快速检测。

关键词: 表面解吸常压化学电离质谱, 氨基甲酸酯, 快速检测

Abstract:

A new Surface Desorption Atmospheric Chemical Ionization mass spectrometry (SDAPCI-MS) method is established to directly determinate pesticide residues on the surface of vegetables without any toxic chemical contamination. Three carbamate pesticides including carbofuran, isoprocarb and methomyl are determinated, and the structure of the molecular ions of each analyte is confirmed by CID to exclude the fake positive conclusion. The detection limit of this method is found to be less than 10-14g/cm2, the detection time is less than 1 s. SDAPCI-MS is good to inspect bulk samples nondestructively without sample pretreatment.

Key words: surface desorption atmospheric pressure chemical ionization mass spectrometry, Carbamate Pesticide, rapid analysis

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