期刊
JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES
卷 34, 期 3, 页码 209-216出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10826076.2011.546162
关键词
9-anthraldimine derivative; amino acid ester; chiral stationary phase; enantiomer separation
资金
- Chosun University
The liquid chromatographic enantiomer separation of several amino acid methyl esters as 9-anthraldehyde Schiff base derivatives on coating and covalently bonded polysaccharide-derived chiral stationary phases (CSPs) is described. The 9-anthraldehyde imine derivatives of amino acid esters were readily prepared by stirring 9-anthraldehyde with the amino acid ester hydrochloride salts. The performance of Chiralcel OD among all examined CSPs was superior to that of the other CSPs for resolution of 9-anthraldimine derivatives of amino acid methyl esters. The enantiomers of all examined amino acid methyl esters as the 9-anthraldimine derivatives were base-line resolved on Chiralcel OD. The L-enantiomers of all analytes are preferentially retained on Chiralcel OD. The chromatographic methods developed in this study were applied in the determination of enantiomeric purity of some commercially available D- or L-amino acid methyl esters.
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