Table 1.

Sensitivity enhancement of oligosaccharide measurement by MALDI-MS after peptide derivatization

Carbohydrate	Underivatized, fmol	Derivatized, fmol	Signal enhancement, fold
A1	600	10	×60
A2F	3,000	10	×300
LSTa	10,000	10	×1000
NA2FB	100–300	2	×50–150