The gas-phase basicities of matrix-assisted laser desorption/ionization matrices
- 1 January 1997
- journal article
- Published by SAGE Publications in European Journal of Mass Spectrometry
- Vol. 3 (1) , 339
- https://doi.org/10.1255/ejms.165
Abstract
The gas-phase basicities of three common matrices used in matrix-assisted laser desorption/ionization (MALDI) have been investigated using laser desorption with Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry. In bracketing type experiments, laser-desorbed ions from 2,5-dihydroxy-benzoic acid, α-cyano-4-hydroxy-cinnamic acid and sinapic acid were tested for their ability to protonate test substances. This study was not limited to protonated matrix species but also included prominent fragments.Keywords
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