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A facile process for the preparation of organic gel-assisted silica microsphere material for multi-mode liquid chromatography.

Authors
  • Fan, Fangbin1
  • Liang, Xiaojing2
  • Wang, Shuai2
  • Wang, Licheng2
  • Guo, Yong3
  • 1 Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China. , (China)
  • 2 Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China. , (China)
  • 3 Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China. Electronic address: [email protected] , (China)
Type
Published Article
Journal
Journal of chromatography. A
Publication Date
Sep 27, 2020
Volume
1628
Pages
461472–461472
Identifiers
DOI: 10.1016/j.chroma.2020.461472
PMID: 32822994
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Organic gel (OG) has excellent characteristics, including a large surface area, adjustable pore/channel size, and good chemical stability, and has attracted great attention in the field of materials. However, the OG packed column is difficult to pack due to the weak mechanical strength and poor monodispersity. Herein, 1-allyl-3-methyl imidazolium hexafluorophosphate-co-1-dodecanethiol ([AMIm]PF6-co-TDDM) was prepared on the silica microsphere for chromatographic packing available in multimode liquid chromatography (LC) mode with the good mechanical properties of silica microspheres through a simple OG synthesis method. [AMIm][email protected] hybrid microspheres with uniform particles and narrow particle size distribution are used as stationary phases of LC. These microspheres are used in anion-exchange (IEC), reversed-phase (RP), and hydrophilic interaction (HILIC) mode for the separation of different analytes. Such microspheres can also be used for the preliminary qualitative analysis of active ingredients in actual samples in addition to organic acids, alkylbenzenes, and nucleoside bases. The [AMIm][email protected] chromatography packing also has good reproducibility and stability. The adhesive properties of organogels and the adsorption properties of silica gel simplify the synthesis of stationary phase materials. This simple and effective strategy for preparing [AMIm][email protected] composite microspheres by one-pot method can expand the application of OG as a functional additive on silica microspheres in LC. Copyright © 2020 Elsevier B.V. All rights reserved.

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