Elimination of internal glycosyl residues during chemical ionization-mass spectrometry of per-O-alkylated oligosaccharide-alditols
✍ Scribed by Michael McNeil
- Book ID
- 102640791
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 496 KB
- Volume
- 123
- Category
- Article
- ISSN
- 0008-6215
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✦ Synopsis
Glycosyl-residue elimination occurred in per-O-alkylated oligosaccharide-alditols during chemical ionization-mass spectrometry. This elimination produced fragment ions equivalent in mass IO an (M + 1) ion of a per-0-alkylated oligosaccharide-alditol containing one less glycosyl residue than the parent per-O-alkylated oli~osaccharide-alditol. Labeling experiments determined that the eiimination fragment-ion was formed from protonatcd-parent. per-O-alkylated oligosaccharide-alditols by the loss of the internal gtycosyl residue that was directly linked to the alditol. Some of the fragment ions produced by the glycosyl elimination underwcnt further glycosyl-residue eliminations.