电喷雾电离
化学
电喷雾
质谱法
电化学
等电聚焦
分析化学(期刊)
离子液体
色谱法
电极
有机化学
物理化学
催化作用
酶
作者
Yong Cai,Pengyuan Liu,Michael Held,Howard D. Dewald,Hao Chen
出处
期刊:ChemPhysChem
[Wiley]
日期:2016-02-11
卷期号:17 (8): 1104-1108
被引量:17
标识
DOI:10.1002/cphc.201600033
摘要
A new coupling of electrochemistry with mass spectrometry (MS) using probe electrospray ionization (PESI) is presented. Due to the high salt tolerance of PESI, the detection of electrochemical reaction products in room-temperature ionic liquids (RTILs) is realized for the first time. Furthermore, PESI-MS allows the analysis of electrochemical reaction products on different or multiple electrode surfaces. In addition, peptides and proteins fractionated through isoelectric focusing (IEF) in the presence of an external electric field can also be directly analyzed by using PESI-MS, suggesting a new and rapid characterization means for the IEF technique. This study reveals the versatility of EC/PESI-MS, which could have an impact in electrochemistry and bioanalysis fields.
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