Electrochemical reactions and ionization processes

Electrochemical or photo-electrochemical reactions in both electrospray ionization and laser desorption ionization are discussed stressing the role of the electrode reaction in influencing the ionization process. In particular, upon application of a high voltage during electrospray ionization, the emitter includes a working electrode, where redox reactions are observed, such as electro-generation of benzoquinone and metal ions. In contrast, the target plate in laser-induced desorption ionization also acts as a photo-electrode, especially when modified with a mesoporous semiconductor. We illustrate here how these electrochemical reactions can be used for tagging purposes and for oxidative or reductive dissociation reactions.


Published in:
European Journal Of Mass Spectrometry, 16, 341-349
Presented at:
18th International Mass Spectrometry Conference, Bremen, GERMANY, Aug 29-Sep 04, 2009
Year:
2010
Publisher:
IM Publications
ISSN:
1469-0667
Keywords:
Laboratories:


Note: The status of this file is: EPFL only


 Record created 2011-12-16, last modified 2018-03-17

Publisher's version:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)