640923.fig.002a
(a)
640923.fig.002b
(b)
Figure 2: ESI-MS/MS for N-glycan structural analysis. MS/MS spectrum of the Hex9HexNAc2  N-glycan (a). Numbers above the parent ions peaks represent [M+Na]+, while other peaks represent [M+H]+ of the fragments. Expected fragment type and mass are indicated in the oligosaccharide structure (b).