高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (3): 448.

• 研究简报 • 上一篇    下一篇

CZE-ESI-MS联用测定小肽混合物的研究

梁振, 张维冰, 张玉奎   

  1. 中国科学院大连化学物理研究所, 国家色谱研究分析中心, 大连 116011
  • 收稿日期:2003-10-03 出版日期:2004-03-24 发布日期:2004-03-24
  • 通讯作者: 张玉奎(1942年出生),男,研究员,博士生导师,中国科学院院士,从事色谱、毛细管电泳及电色谱等方面的研究.E-mail;ykzhang1@on lin.ln.cn E-mail:ykzhang1@on lin.ln.cn
  • 基金资助:

    国家重点基础研究发展规划项目(批准号;001CB510202)资助

Determination of Multipeptide Mixture by Using CZE Coupled with ESI-MS

LIANG Zhen, ZHANG Wei-Bing, ZHANG Yu-Kui   

  1. National Chromatographic Research & Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116011, China
  • Received:2003-10-03 Online:2004-03-24 Published:2004-03-24

关键词: 毛细管电泳, 肽, 质谱, 包层液, 电喷雾接口

Abstract: CZE ESI MS is one of the most sensitive detection method and one of the potential method for protomics analysis. In this work, peptide mixture was separated and detected by using CZE ESI MS, and the influence of pH value of buffer and composition of sheath liquid on CE separation and MS detection was investigated. The method allows the detection limits up to 4.2—33 pg. The result of this method is better than that of CE UV for the peptide analysis.

Key words: Capillary electrophoresis, Peptide, Mass spectrometry, Sheath liquid, Electrospray ionization interface

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