The synthetic derivatives are then subjected to FAB-MS analysis. In FAB-MS, a beam of fast atoms (usually noble gases like xenon or argon) is directed at the sample, causing the molecules to be ionized and fragmented. The resulting ions are then analyzed by a mass spectrometer, which measures their mass-to-charge ratios.
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benzyl O-(2-deoxy-4,6-O-isopropylidene-2-phthalimido-β-D-glucopyranosyl)-(1-4)-2,3,6-tri-O-benzyl-β-D-glucopyranoside
