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. Author manuscript; available in PMC: 2019 Jan 11.
Published in final edited form as: Anal Chem. 2017 Apr 26;89(10):5364–5372. doi: 10.1021/acs.analchem.7b00062

Figure 5.

Figure 5.

MS/MS of the permethylated N-glycan ion m/z 1877.74Na+ at retention time of 96 min. MS/MS of the sodiated ion provides informative fragments which were not usually observed for protonated glycans. The small extracted ion chromatogram shows that the ion originated from elution as a single peak during chromatography on the C18 capillary column.