๐”– Bobbio Scriptorium
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Multiply charged ions in ionspray tandem mass spectrometry

โœ Scribed by K. W. M. Siu; G. J. Gardner; S. S. Berman

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
919 KB
Volume
24
Category
Article
ISSN
1076-5174

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โœฆ Synopsis

Multiply charged anions of some 30 species containing multiple carboxylic, sulphonic and/or phosphoric groups generated by ionspray were studied by using tandem mass spectrometry (MS/MS). Two trends emerged: (1) lowercharged ions are preferentially evaporated, and (2) for more highly charged ions, evaporability is a function of ion size. Triply and quadruply charged ions were observed for azo dyes with molecular masses in the 700-900 Dalton range. Daughter-ion mass spectra of selected multiply charged ions are presented.

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