Figure 7

Summary of fragmentation products in positive-ion mode ion trap-mass spectrometry of permethylated neutral glycolipids of fraction F3A. iGb3 and Gb3 as well as iGb4 and Gb4 are recognized by the fragmentation of the disaccharide-1-ene ions (m/z 445 and m/z 431, respectively). F, fragment ions; FNa+, fragment with Na+ adduct.