Capillary electrophoretic separation of mono- and dimaltosyl-β-cyclodextrins and determination of the stability constants of their benzoate complexes |
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Authors: | M Tarnai Z Szakács Á Buvári-Barcza L Barcza |
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Institution: | 1. Institute of Inorganic and Analytical Chemistry, L. E?tv?s University, P.O. Box 32, 1518, Budapest-112, Hungary
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Abstract: | Summary Capillary zone electrophoresis method has been developed for the separation (and determination) of monoand dimaltosyl-β-cyclodextrins
using indirect UV absorbance detection. The separation is based on inclusion complex formation with benzoate ion which is
used as background electrolyte and absorbance provider simultaneously. Good resolution of cyclodextrin mixtures can be achieved
optimizing the pH and the benzoic acid concentration in the background electrolyte. Capillary zone electrophoresis method
has also been developed for the determination of formation constants of inclusion complexes. |
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Keywords: | Capillary zone electrophoresis (CZE) Maltosyl-β -cyclodextrin Inclusion complexes Indirect absorbance detection (IAD) |
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