Development and characterizations of a miniature capillary electrophoresis mass spectrometry system

  • Muyi He
  • , Zhenhua Xue
  • , Yinna Zhang
  • , Zejian Huang
  • , Xiang Fang
  • , Feng Qu
  • , Zheng Ouyang
  • , Wei Xu*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

A miniature capillary electrophoresis mass spectrometry (CE/MS) system has been developed in this work. A 100% electrical driven miniaturized CE device was integrated with a miniature MS instrument, which has a discontinuous atmospheric pressure interface (DAPI) for coupling with atmospheric pressure ionization sources. A nanoelectrospray ionization (nano-ESI) source was developed with a sheath liquid interface for coupling the miniature CE and the MS system. A systematic characterization and optimization of the analytical performance have been done. The analysis of isobaric peptides and avoiding charge competition effects in nano-ESI sources have been demonstrated.

Original languageEnglish
Pages (from-to)2236-2241
Number of pages6
JournalAnalytical Chemistry
Volume87
Issue number4
DOIs
Publication statusPublished - 17 Feb 2015

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