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. 2015 Feb 10;14(4):974–988. doi: 10.1074/mcp.M115.048272

(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.