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Mechanisms of ion formation in field desorption of oligosaccharides

✍ Scribed by David E. C. Rogers; Peter J. Derrick

Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
584 KB
Volume
19
Category
Article
ISSN
1076-5174

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πŸ“œ SIMILAR VOLUMES

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## Abstract In the field desorption mass spectrometry of oligosaccharides, traces of contaminating salts in polar solvents decrease the detection sensitivity, and in some cases no ion could be detected in the molecular range. The present work shows that the addition of alkaline salts (NaI or KI) gr

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The formation of ions of the cyclic depsipeptide valinomycin by field desorption has been investigated in detail. The ratio of molecular ions M+' to protonated molecules (M + HI+ has been found to be independent of emitter heating current and the nature of particular additives to the solution. In co