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Published on: August 22, 2018
Enantioseparations in Nonaqueous Capillary Electrophoresis Using Charged Cyclodextrins
Anne-Catherine Servais1, Marianne Fillet2
1Laboratory for the Analysis of Medicines, Department of Pharmaceutical Sciences, CIRM, Quartier Hôpital, University of Liège, Liège, Belgium. acservais@uliege.be.
Abstract:
The enantioseparation of acidic and basic compounds can be successfully achieved in nonaqueous capillary electrophoresis (NACE) using single-isomer charged β-cyclodextrin (β-CD) derivatives of opposite charge to that of the analytes. This chapter describes how to separate the enantiomers of three basic substances selected as model compounds, i.e., alprenolol, bupranolol, and terbutaline, using the negatively charged heptakis(2,3-di-O-acetyl-6-O-sulfo)-β-CD (HDAS-β-CD). The enantiomers of three acidic drugs (tiaprofenic acid, suprofen, and flurbiprofen) are resolved using a monosubstituted amino β-CD derivative, namely 6-monodeoxy-6-mono(3-hydroxy)propylamino-β-CD (PA-β-CD).
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