色谱

色谱

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采用实时直接分析质谱法原位快速鉴别茶叶

张佳玲, 张伟, 周志贵, 白玉, 刘虎威*   

  1. 北京大学化学与分子工程学院, 北京 100871
  • 收稿日期:2011-04-14 修回日期:2011-05-30 出版日期:2011-07-28 发布日期:2011-08-19
  • 通讯作者: 刘虎威,博士,教授.
  • 基金资助:

    中央高校基本科研业务费专项;国家自然科学基金资金

n situ and rapid identification of tea by direct analysis in real time mass spectrometry

ZHANG Jialing, ZHANG Wei, ZHOU Zhigui, BAI Yu, LIU Huwei*   

  1. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
  • Received:2011-04-14 Revised:2011-05-30 Online:2011-07-28 Published:2011-08-19
  • Supported by:

    国家自然科学基金(20805001和21027012)和中央高校基本科研业务费专项资助

PDF

521

被引次数

43

摘要： 采用近年来发展迅速的常温常压离子化技术——实时直接分析质谱法,建立了对茶叶中主要成分如茶氨酸、咖啡碱等的快速测定方法,通过特征的质谱信号离子,实现了对不同茶叶的快速鉴别。实时直接分析质谱法在大气压下进行,无需对茶叶进行任何的样品处理,大大缩短了分析时间,实现了原位、快速、准确且高通量的检测。

关键词: 茶叶, 快速鉴别, 实时直接分析, 原位, 质谱

Abstract: By applying an ambient mass spectrometric method－direct analysis in real time mass spectrometry (DART MS), a method was developed for rapid identification of the principal constituents in different kinds of tea. The identification of different kinds of tea was also achieved by characteristic mass spectrometric signals. Under atmospheric pressure, DART MS method does not require any sample preparation, greatly reduces the analysis time, realizes the in situ, rapid, accurate, and high-throughput analysis.

Key words: in situ, rapid identification, tea, direct analysis in real time (DART), mass spectrometry (MS)