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Negative ion fast atom bombardment and collision‐induced dissociation mass spectrometry of the 2‐, 3‐, 4‐ and 6‐deoxy derivatives from methyl β‐ D ‐galactopyranoside and related compounds
Author(s) -
Dallinga Jan W.,
Pachen Danielle M. F. A.,
Kleinjans Jos C. S.,
Kovac Pavol
Publication year - 1994
Publication title -
biological mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1052-9306
DOI - 10.1002/bms.1200231208
Subject(s) - fragmentation (computing) , fast atom bombardment , chemistry , dissociation (chemistry) , ion , collision induced dissociation , mass spectrometry , molecule , mass spectrum , deprotonation , atom (system on chip) , computational chemistry , stereochemistry , tandem mass spectrometry , organic chemistry , chromatography , computer science , operating system , embedded system
The fast atom bombardment collision‐induced dissociation mass spectra of the [M – H] ions of the 2‐, 3‐, 4‐ and 6‐deoxy derivatives from methyl β‐ D ‐galactopyranoside and some related compounds have been recorded. The fragmentation reactions of these quasimolecular ions and of OD‐labelled analogues have been examined and related to the molecular structure. In some cases distinct and common mechanisms can be derived, but it is also clear from these experiments that not only the site of deprotonation of the molecules, but also the anticipated charge localization in the fragment ions strongly direct the fragmentation reactions.