Abstract
The mass spectra of 13 perdeuteriomethylated flavonoid disaccharides comprising flavones, flavanones, flavonols and an isoflavone are reported. It is shown that their fragmentation pattern allows unequivocal differentiation according to the structural type of the aglycone, the sugar sequence and the position of the interglycosidic linkage. Moreover, information regarding substitution on the aglycone can be obtained. All compounds except one exhibited molecular ion peaks thus allowing direct molecular weight determination.
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