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Issue 1, 2014
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MALDI mechanisms: wavelength and matrix dependence of the coupled photophysical and chemical dynamics model

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Abstract

The ultraviolet wavelength and fluence dependence of MALDI ion yields using several matrices has recently been reported (Soltwisch et al., Anal. Chem., 2012, 84, 6567). These extensive data provide a test of the coupled photophysical and chemical dynamics (CPCD) model, and are used to extend the model to new matrices. The experimental phenomena are generally well reproduced by the model, particularly when transient photochemical products or exciplexes are included. While the CPCD is consistent with the data, thermal models appear to be largely incompatible with it.

Graphical abstract: MALDI mechanisms: wavelength and matrix dependence of the coupled photophysical and chemical dynamics model

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Article information


Submitted
29 Jul 2013
Accepted
09 Oct 2013
First published
10 Oct 2013

Analyst, 2014,139, 147-156
Article type
Paper

MALDI mechanisms: wavelength and matrix dependence of the coupled photophysical and chemical dynamics model

R. Knochenmuss, Analyst, 2014, 139, 147
DOI: 10.1039/C3AN01446K

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