Add time:07/12/2019         Source:sciencedirect.com

Recently,ionic liquids (ILs) functionalized cyclodextrins (CDs) have attracted more and more attention in the fields of enantioseparation. In this study, a novel IL amino triazolium functionalized β-CD derivative, mono-6-deoxy-6-(4-amino-1,2,4-triazolium)-β-cyclodextrin chloride (4-ATMCDCl), was synthesized for the first time and managed to separate dansyl amino acids and naproxen by capillary electrophoresis (CE). Compared with native β-CD, the new selector exhibited good water solubility and enhanced enantioselectivity. Several crucial parameters such as selector concentration, buffer pH, and applied voltage were systematically investigated. The molecular docking program Autodock was applied to further demonstrate the mechanism of chiral recognition and the enhanced enantioselectivity of 4-ATMCDCl, which showed good agreement with our experimental results.

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