Resolution of Mephenytoin and Some Chiral Barbiturates into Enantiomers by Reversed Phase High Performance Liquid Chromatography via β-Cyclodextrin Inclusion Complexes
- 1 February 1986
- journal article
- research article
- Published by Taylor & Francis in Journal of Liquid Chromatography
- Vol. 9 (2-3), 591-606
- https://doi.org/10.1080/01483918608076655
Abstract
β-Cyclodextrin as the chiral mobile phase component was used for resolution of mephenytoin and some barbiturates (antidepressant drugs) into enantiomers on LiChrosorb RP 18 column. The effects of β-cyclodextrin concentration on the capacity factors were investigated and the stability constants as well as capacity factors of β-cyclodextrin complexes were calculated. It has been found that β-cyclodextrin complexation results in a distinct enantioselectivity in the case of mephenytoin and barbiturates containing a chiral center in the pyrimidine ring. Results are discussed in the light of two phenomena influencing resolution: adsorption of inclusion complexes on the stationary phase and complexation process in the mobile phase solution.Keywords
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