Enantioselective separation of RS-mandelic acid using β-cyclodextrin modified Fe3O4@SiO2/Au microspheres

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出版日 2018-04-20

DOI 10.1039/C8AN00427G

インパクトファクター 4.616

著者

Wenbin Li, Guosheng Ding, Xiaoping Chen

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要旨

Chiral magnetic microspheres show great potential in direct enantioseparation. Herein novel chiral magnetic microspheres were prepared by self-assembling β-cyclodextrin on magnetic Fe3O4@SiO2/Au composite microspheres. The prepared materials were characterized by transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), vibrating sample magnetometry (VSM) and Fourier transform infrared spectroscopy (FTIR). The results showed that the functional microspheres have a three-ply structure and high saturation magnetization. β-Cyclodextrin-immobilized magnetic Fe3O4@SiO2/Au microspheres (Fe3O4@SiO2/Au/β-CD) were applied in the direct chiral separation of RS-mandelic acid. The analysis results of HPLC revealed that the Fe3O4@SiO2/Au/β-CD magnetic microspheres exhibited stronger enantioselective adsorption for R-mandelic acid than S-mandelic acid. The chiral selector functionalized magnetic microspheres are therefore expected to be an efficient and economical chiral separation method for use in further research.

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CiteScore: 7.8

自己引用率: 5.6%

年間論文数: 653

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Enantioselective separation of RS-mandelic acid using β-cyclodextrin modified Fe3O4@SiO2/Au microspheres

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