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Citation: CUI Li-Li, WEI Zhong-Lin, FEI Qiang, LI Ming. A Novel System of Electrochemistry Coupled with Mass Spectrometry[J]. Chinese Journal of Analytical Chemistry, ;2019, 47(1): 23-29. doi: 10.19756/j.issn.0253-3820.181537 shu

A Novel System of Electrochemistry Coupled with Mass Spectrometry

1.
College of Chemistry, Jilin University, Changchun 130012, China;
2.
Division of Chemical Metrology & Analytical Science, National Institute of Metrology, Beijing 100029, China

Received Date: 16 August 2018
Revised Date: 8 October 2018

Fund Project: This work was supported by the National Key Research and Development Program of China (No. 2017YFF0205403).

A novel system of electrochemistry coupled with mass spectrometry (EC-MS) was developed. An electrospray ion source with a grounded needle design was used as the interface of the EC-MS, which avoided the damage of the electronic components of the potentiostat and significantly simplified instrument configuration. To evaluate the performance of the novel EC-MS system, the electrochemical reduction behavior of oxidized glutathione (GSSG) and the electrochemical oxidation behavior of reduced glutathione (GSH) were investigated. The experimental result showed that this system had high sensitivity, high reaction efficiency and high speed. As a new analytical approach, it has potential in identification of electrochemical reaction products and intermediates, proteomics and drug metabolism.
- Electrochemistry coupled with mass spectrometry,
- Glutathione,
- Oxidation,
- Reduction
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