Chinese Journal of Applied Chemistry ›› 2019, Vol. 36 ›› Issue (7): 823-831.DOI: 10.11944/j.issn.1000-0518.2019.07.190021

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Separation and Analysis of Mixed Amino Acid Enantiomers by Capillary Electrochromatography-Electrospray- Time of Flight/Mass Spectrometry

LI Yingjie,LIN Xiaotong,GAO Lidi(),QIN Shili,TANG Yimin,JIN Zhixiang,ZHANG Shuai   

  1. College of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar,Heilongjiang 161006,China
  • Received:2019-01-22 Accepted:2019-04-26 Published:2019-07-01 Online:2019-07-02
  • Contact: GAO Lidi
  • Supported by:
    Supported by the Heilongjiang Provincial Department of Education Overseas Scholars Research Funding Project(No.1254HQ012), Heilongjiang Provincial Department of Education Basic Business Special Science and Engineering Project(No.135209215)

Abstract:

A simple and efficient capillary electrochromatography-electrospray- time of flight/mass spectrometry(CEC-ESI-TOF/MS) method for the separation and analysis of mixed amino acid enantiomers was established. D,L-arginine, D,L-valine, and D,L-glutamate acid were taken as the research objects. By optimizing the CEC separation conditions and MS detection conditions, the six components of the three mixed amino acid enantiomers were separated within 15 min, and the resolutions were 3.03, 1.59 and 1.37, respectively. It provides a reference method for the separation and analysis of mixed enantiomers.

Key words: capillary electrochromatography-electrospray-time of flight/mass spectrometry, enantiomer separation, mixed amino acid, monolithic column