Comparative Enantiomer Separation on Chiral Stationary Phases Derived from Chiral Crown Ether by HPLC
Comparative liquid chromatographic enantiomer separation of α-amino acids, their esters and primary amino compounds was performed using two chiral stationary phases (CSPs) prepared by covalently bonding (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid (18-C-6-TA) of the same chiral selector. In gener...
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Published in | Korean Society for Biotechnology and Bioengineering Journal Vol. 27; no. 4 |
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Main Authors | , , , |
Format | Journal Article |
Language | Korean |
Published |
01.07.2012
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Subjects | |
Online Access | Get full text |
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Summary: | Comparative liquid chromatographic enantiomer separation of α-amino acids, their esters and primary amino compounds was performed using two chiral stationary phases (CSPs) prepared by covalently bonding (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid (18-C-6-TA) of the same chiral selector. In general, the separation factors and resolution factors for these analytes on CSP 1 were greater than on CSP 2, while these capacity factors on CSP 2 were quite greater than on CSP 1. Except for leucine methyl ester and phenylalanine methyl ester, the elution orders of all analytes including α-amino α-alkyl acids and phenylglycine alkyl esters on CSP 1 are identical to those on CSP 2. This study showed that different connecting structures for these two CSPs might influence their ability to resolve the analytes depending on their structures related to the chiral recognition mechanism. |
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Bibliography: | 2013002293 E21 |
ISSN: | 1225-7117 |