[Capillary electrophoretic enantioseparation of arylglycine amides with highly sulfated beta-cyclodextrin as chiral selector]

Se Pu. 2002 Sep;20(5):407-10.
[Article in Chinese]

Abstract

Enantiomers of nine arylglycine amides synthesized were successfully separated by capillary electrophoresis (CE) using highly sulfated beta-cyclodextrin (HS-beta-CD) as a chiral selector. Baseline enantioseparation of the analytes was obtained within 6 min at neutral pH but not the commonly used acidic condition. HS-beta-CD content, buffer type and concentration, and non-chiral additive were studied and optimized for high resolution and fast speed. A reproducible running buffer system composed of 15 g/L HS-beta-CD, 0 or 10% (volume fraction) methanol and 20 mmol/L 3-(N-morpholino) propane sulfonic acid at pH 6.5 was obtained. The D-enantiomer always migrated ahead of the L-enantiomer for all the 9 pairs of arylglycine amides. The migration order was found to be dependent on the structure of the solutes.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amides / chemistry*
  • Electrophoresis, Capillary / instrumentation*
  • Electrophoresis, Capillary / methods*
  • Glycine / analogs & derivatives*
  • Stereoisomerism
  • beta-Cyclodextrins / chemistry*

Substances

  • Amides
  • beta-Cyclodextrins
  • betadex
  • Glycine