Enantioselective separation in capillary electrophoresis using a novel mono-6A-propylammonium-β-cyclodextrin as chiral selector

  • Tang W
  • Muderawan I
  • Ng S
 et al. 
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Abstract

The chiral resolving ability of a novel single-isomer cationic β-cyclodextrin (CD), mono-6A-propylammonium-6A-deoxy-β-cyclodextrin chloride (PrAMCD), as a chiral selector in capillary electrophoresis (CE) is reported in this work for the enantioseparation of hydroxy, carboxylic acids and amphoteric analytes. The effect of chiral selector concentration on the resolution was studied. Good resolutions were achieved for hydroxy acids. Optimum resolutions were obtained even at 3.5 mM CD concentration for carboxylic acids. The electrophoretic method showed good linearity and reproducibility in terms of migration times and peak areas, which should make it suitable for routine analysis. In addition, baseline chiral separation of a six-acid mixture was achieved within 20 min. PrAMCD proved to be an effective chiral selector for acidic analytes. © 2005 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • 6A-Propylammonium-6A-deoxy-β- cyclodextrin chloride
  • Capillary electrophoresis
  • Cationic β-cyclodextrin
  • Enantionmeric separation

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Authors

  • Weihua Tang

  • I. Wayan Muderawan

  • Siu Choon Ng

  • Hardy Sze On Chan

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