Electrochemical Sonic Spray Ionization Mass Spectrometry

Liu, Yao-Min

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https://hdl.handle.net/2142/95878 Copy

Description

Title

Electrochemical Sonic Spray Ionization Mass Spectrometry

Author(s)

Liu, Yao-Min

Issue Date

2017

Keyword(s)

Chemistry

Abstract

Resolving complex electrochemical reaction mechanisms requires the identification of reaction intermediates and products. We report a versatile electrochemical cell (EC) composed of paper sandwiched between two mesh electrodes which is coupled to sonic spray ionization mass spectrometry (SSI-MS). The paper is extended into the electrolyte solution and provides electrolytes through capillary action. Reagents can be delivered via SSI emitter or placed in the electrolyte solution. The mesh electrode surface can be modified by sputter coating. The short response time allowed detection of glyceraldehyde in glycerol oxidation on Pt surface, which was previously reported non-detectable without sample pretreatment. The high temporal resolution as well as high modulability of the cell makes EC/SSI-MS a powerful tool for elucidating the mechanisms of electrochemical processes.

Type of Resource

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http://hdl.handle.net/2142/95878

Copyright and License Information

Copyright 2017 Yao-Min Liu

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