1:1 Adduct Ion Formation of Permethylated Monosaccharides with Organic Cations in FAB Mass Spectrometry

Article abstract of DOI:10.1246/bcsj.64.1243

The 1:1 adduct ion formation between a series of permethylated monosaccharides (M; Ia-Ih) and an organic or a metallic cation (A+) has been examined in quantitative FAB mass spectrometry.In a careful camparison under the same FABMS conditions, the relative (M+A)+ peak intensities increase in the following order of the monosaccharides, and further increase at nearly the same extents in spite of using three different cations such as octylammonium, (methoxycarbonyl)methylammonium, and potassium ions: β-Glc < α-Glc < α-Gal < β-Gal