poly[(l-^4)oGlcNAee]; see insert in spectrum BDH Chemicals Ltd., Poole, UK suspension in PBS buffer; 10 yg standard 4.3 X 105

REMARKS - Compare with Spectrum A.13. Note the quantitative differences in the typical nitrogen-containing fragment series (odd mass values) and the increase in intensity at m/z 136 (structure unknown). Peaks at m/z 36, 38 represent HC1+' (PBS buffer).

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