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Identification of the position of the sulphate substituent in methyl α‐ D ‐mannopyranoside monosulphates by fast atom bombardment mass spectrometry
Author(s) -
Tip Leonore,
Heerma Wigger,
Contreras Raphael Ruiz,
Kamerling Johannis P.
Publication year - 1991
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.1200200208
Subject(s) - fast atom bombardment , substituent , chemistry , ion , mass spectrum , mass spectrometry , atom (system on chip) , tandem mass spectrometry , spectral line , analytical chemistry (journal) , stereochemistry , chromatography , organic chemistry , physics , astronomy , computer science , embedded system
The positive and negative ion fast atom bombardment mass spectra of methyl α‐ D ‐mannopyranoside 2‐, 3‐, 4‐ and 6‐(sodium sulphate) show distinct pseudo‐molecular ions. The fragment ions in the mass spectra are insufficiently characteristic to differentiate among the positional isomers. The tandem mass spectra of the [M + Na] + and [M − Na] − ions, however, are suitable for identification of the position of the sulphate group.