Abstract
Two chiral selectors were synthesized from tartaric acid. The selectors were simultaneously immobilized on 3-aminopropyl silica gel to obtain a new biselector chiral stationary phase (CSP) in order to determine the influence of selector structure of biselector CSPs on the chiral recognition capability. For comparison, the single-selector CSP was also prepared. The biselector CSP shows an improved overall chiral recognition capability in comparison with the single-selector CSP. During the enantioseparation, temporary diastereoisomers are likely formed by complexation between a chiral analyte and the two selectors on the biselector CSP. The functional groups in the two selectors are complementary in electronic effect and/or in steric hindrance for the chiral recognition.
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Foundation item: Supported by the National Natural Science Foundation of China (20675061 and 50973086) and the Research Project of Department of Education of Hubei Province (Z20081501)
Biography: CHEN Wei, male, Lecturer, research direction: chiral separation materials.
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Chen, W., Zhang, J., Li, Y. et al. A new biselector chiral stationary phase derived from tartaric acid and its enantioseparation evaluation. Wuhan Univ. J. Nat. Sci. 17, 383–390 (2012). https://doi.org/10.1007/s11859-012-0859-7
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DOI: https://doi.org/10.1007/s11859-012-0859-7
Key words
- biselector
- chiral stationary phase
- enantioseparation
- chiral recognition mechanism
- high-performance liquid chromatography