Figure 4.

Elution behaviour of the pentose‐containing glycan os3230 on porous graphitized carbon‐liquid chromatography‐electrospray ionization‐mass spectrometry (PGC‐LC‐ESI‐MS).

Panels (a) and (b) show the extracted ion chromatograms for m/z = 736.2 (os3230, doubly charged) and m/z = 1237.4 (os5200) for Sol‐C‐53 and Jar‐C‐61 respectively. For os5200, the later eluting peak represents the regular Man5 structure. It must be added that the elution profiles for this glycan in the ‘Gov’, ‘Ama’, ‘Asp’, and ‘Pit’ glyco‐groups resembled that of the ‘Jar’ sample (Figure S9). Panels (a´) and (b´) demonstrate the differing ratios of [MH₂]²⁺ and [MHNH₄]²⁺ ions.