Journal
JOURNAL OF MASS SPECTROMETRY
Volume 43, Issue 11, Pages 1494-1501Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/jms.1425
Keywords
negative mode; MALDI-MS; pigments; tetrathiafulvalene; electron donating compound; fragmentation
Funding
- Japanese Ministry of Education, Science, and Culture (Special Coordination Funds for the Promotion of Science and Technology) [20403010]
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Negative-mode matrix-assisted laser desorption/ionization-mass spectrometry (MALDI-MS) analysis of industrial pigments was performed using tetrathiafulvalene (TTF), an electron donating compound, as a matrix. Comparing with other matrices such as tetracyanoquinodimethane (TCNQ), dithranol, 2-hydroxy-6-nitroaniline (HNA), and harmine hydrochloride, the most abundant analyte ions were produced by the TTF as radical or deprotonated anions. In addition, fragment ions in the negative mode of operation are also found to be much less abundant than those in the positive mode of operation. Copyright (C) 2008 John Wiley & Sons, Ltd.
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