Abstract

We report a simple and rapid microwave-assisted method for the preparation of oligosaccharide-glycosylamines, followed by labelling with tris(2,4,6-trimethoxyphenyl)phosphonium acetic acid N-hydroxysuccinimide ester. The facile strategy introduced a permanent charge at the reducing end of the oligosaccharide. In combination of MALDI-MS, the detection limit for maltoheptaose was as low as 2 fmol μL(-1).

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