CAPILLARY ELECTROPHORETIC SEPARATION OF ALPHA-CYCLDEXTRIN, BETA-CYCLODEXTRIN, GAMMA-CYCLODEXTRIN AND DELTA-CYCLODEXTRIN USING A DUAL ELECTROLYTE SYSTEM

Capillary electrophoresis was employed for the separation alpha-, beta -, gamma and delta-cyclodextrins (CDs). A separation of alpha-, beta-, gamma- and delta-CDs could be obtained by the use of a range of aroma tic anions as background electrolytes. Using a dual electrolyte system consisting of 3.5 mM methyl orange and 40 mM 4-tert.-butylbenzoic aci d, alpha-, beta-, gamma- and also delta-CDs could be separated with a 6-13-times higher sensitivity compared to previously published methods . (C) 1998 Elsevier Science B.V. All rights reserved.