Abstract
Maltotriosyl- and panosyl-alpha-cyclodextrins and the nonaose of pullulan were analyzed by post-source decay (PSD) fragment methods of matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectroscopy. By the mass number analysis, it was found that all of the PSD fragment ions were produced by cleavages of glycosidic linkages. Comparison of the relative intensities of the ions in those compounds enabled us to distinguish two kinds of glycosidic linkages, alpha 1-4 and alpha 1-6, by MALDI-TOFMS with a new type of ion reflector: the curved field reflectron.
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