Colour reactions between sugars and diphenylamine-urea and diphenylamine-p-anisidine on paper chromatograms

摘要: Abstract Conditions have been defined in which mixed acidic diphenylamine-urea or diphenylamine- p -anisine spray reagents give, on paper chromatograms, sensitive, specific colour reactions distinguish between 1 → 1, 3, 4, 5 and 6 linked disaccharides containing a reducing ketose unit. The -anisidine reagent gives different with aldo- keto-heptoses is sensitive locating for aldose A less has developed pentoses uronic acids, differentiates 2, 4 3 disaccharides.