Adsorption chromatography of Schardinger dextrins on Sephadex G-15

Both α- and β-Schardinger dextrins and their α-1 → 6-substituted glucosyl derivatives behave anomalously on Sephadex G-15 column chromatography in that they are retarded well beyond their expected elution volumes. It would appear that they are fractionated by adsorption chromatography rather than by molecular sieving. The separations are superior to those on the molecular sieve Bio-Gel P-2, where adsorption does not occur, and offer a useful preparative method for the glucosyl dextrins.