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Chiral separation of abscisic acid enantiomers by capillary zone electrophoresis using cyclodextrins and their derivatives as chiral selectors



Chiral separation of abscisic acid enantiomers by capillary zone electrophoresis using cyclodextrins and their derivatives as chiral selectors



Analytical Letters 35(13): 2185-2197



The chiral separation of abscisic acid enantiomers was studied by capillary electrophoresis using beta-cyclodextrin (beta-CD), gamma-CD, hydroxypropyl-beta-CD (HP-beta-CD) and dimethyl-beta-CD (DM-beta-CD) as chiral selectors. The effect of the selector concentration, pH of the run buffer, field strength, temperature and capillary length on the chiral separation were investigated. Capillary zone electrophoresis of (+-)-abscisic acid enantiomers was established. The interaction between entiomers and CDs is different due to different kinds of CDs and their substituted group. The size of the inclusion cavity also plays a critical role in the interaction. gamma-CD, HP-beta-CD and DM-beta-CD form strong complexes with (+-)-abscisic acid than beta-CD. In the presence of gamma-CD, the best Rs was obtained.

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Accession: 010315843

Download citation: RISBibTeXText

DOI: 10.1081/al-120015005


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