Gas-phase fragmentation studies of cyclic oligo-β-(1→6)-D-glucosamines by electrospray ionization mass spectrometry using a hybrid high-resolution mass spectrometer

Positive and negative ion high-resolution electrospray ionization mass spectra (MS and MS 2 ) of cyclooligo-β-(1→6)-D-glucosamines and cyclooligo-β-(1→6)-N-acetyl-D-glucosamines were acquired and interpret. It was shown that the cleavages of glycosidic bonds are the main processes in the decay of pr...

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Bibliographic Details
Published in:Russian chemical bulletin 2018-01, Vol.67 (1), p.144-149
Main Authors: Chizhov, A. O., Gening, M. L., Pinsker, O. A., Yudina, O. N., Tsvetkov, Yu. E., Nifantiev, N. E.
Format: Article
Language:English
Subjects:
AMMONIA
ANIONS
Chemical bonds
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
CLEAVAGE
Electrospraying
FRAGMENTATION
GLUCOSAMINE
High resolution
Inorganic Chemistry
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
IONIZATION
Ions
MASS SPECTRA
MASS SPECTROMETERS
Mass spectrometry
MOLECULES
Organic Chemistry
WATER
Water chemistry
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Summary:Positive and negative ion high-resolution electrospray ionization mass spectra (MS and MS 2 ) of cyclooligo-β-(1→6)-D-glucosamines and cyclooligo-β-(1→6)-N-acetyl-D-glucosamines were acquired and interpret. It was shown that the cleavages of glycosidic bonds are the main processes in the decay of protonated and metallated molecules. In addition, elimination of the water molecules (and ammonia for cyclooligo-β-(1→6)-D-glucosamines) was observed along with other processes including the unknown skeletal rearrangement. A primary fragmentation of the negatively charged ions (deprotonated molecules) differed from that of the positively charged ones.
ISSN:1066-5285
1573-9171
DOI:10.1007/s11172-018-2050-6