Can I read Enantioseparation of Atropine by Capillary Electrophoresis Using Sulfated β-Cyclodextrin: Application to a Plant Extract on EtoBox?

Enantioseparation of Atropine by Capillary Electrophoresis Using Sulfated β-Cyclodextrin: Application to a Plant Extract by Lidia Mateus; Samir Cherkaoui; Philippe Christen; Jean-Luc Veuthey is a Chemistry article available to read on EtoBox.

What is Enantioseparation of Atropine by Capillary Electrophoresis Using Sulfated β-Cyclodextrin: Application to a Plant Extract about?

A capillary zone electrophoresis (CZE) method, with sulfated beta-CD as chiral selector, was optimized by means of an experimental design for the enantioseparation of atropine. In this study, a central composite design was used and the following factors were varied simultaneously: buffer concentration, buffer pH and sulfated beta-CD concentration. The resolutions between littorine and its positional isomer ((-)-hyoscyamine) and between atropine enantiomers, as well as the separation time and generated current were established as responses. A model was obtained for each response by linear multiple regression of a second-degree mathematical expression. The most favorable conditions were determined by maximizing the resolution between atropine enantiomers and by setting the other responses at threshold values. Successful results were obtained with a 55 mM phosphate buffer at pH 7 in the presence of 2.9 mM sulfated-beta-CD at 20 degrees C and 20 kV. Under these optimized conditions, a baseline separation of littorine and atropine enantiomers was achieved in less than 5 min. Finally, the method allowed the enantiomeric separation of atropine in a pharmaceutical formulation and was also

Who reads Enantioseparation of Atropine by Capillary Electrophoresis Using Sulfated β-Cyclodextrin: Application to a Plant Extract?

Author

Lidia Mateus; Samir Cherkaoui; Philippe Christen; Jean-Luc Veuthey

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1873-3778)

Published

2000

Language

EN

Field

Chemistry (Physical Sciences)