(B) Diagnostic neutral losses of A-type fragmentationgiving the distinctive fragment ion set for different linkages ofgluco-disaccharides, also applicable to oligosaccharides.
A-type neutral losses* | Linkage |
---|---|
−18/78/120 | -2Glc |
– | -3Glc |
−60/78/120 | -4Glc |
−60/90/120 | -6Glc |
* The fragmentation ions are counted from the molecular ion [M-H]− and glycosidic C-ions; '-' indicates not detected.