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Extracted ion current chromatograms of the most abundant charge state of the glycoform (a) A2G1F/A2S2F, (b) A2G1F/A2S1G1F, (c) A2G0F/A2G1F, and (d) M5/M5. Glycoform carrying sialic acids eluted at lower RT while oligomannose type to higher RT. Glycan structures, names, and compositions are collected in Table S1.
