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p-tert-Butylcalix[4]arene-1,3-bis(allyloxyethoxy)ether Coated Capillaries for Open-Tubular Electrochromatography

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Abstract

The preparation and characterization of p-tert-butylcalix[4]arene-1,3-bis(allyloxyethoxy)ether (CA[4]-BAE) chemically coated capillaries via a free-radical reaction with vinyltriethoxysilane (VTES) that was attached onto the inner wall previously were carried out. IR spectra and decreased electroosmotic flow (EOF) suggested that the capillary was successfully coated with CA[4]-BAE. A slight slope of EOF versus pH at 5 < pH < 9 would help to make the separation reproducible. The CA[4]-BAE-coated capillary showed improved separations of toluidine isomers, naphthol isomers and polycyclic aromatic hydrocarbons (PAHs) compared with an uncoated capillary. The special selectivity indicates that there is a certain extent of host-guest interactions between the solutes and the CA[4]-BAE coating.

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Authors and Affiliations

  1. Institute of Materia Medica, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China

    Haibing Li & Xiangliang Yang

  2. Department of Chemistry, Wuhan University, Wuhan, 430072, China

    Yuanyin Chen, Zhaorui Zeng & Chuanhui Xie

Authors
  1. Haibing Li
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  2. Yuanyin Chen
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  3. Zhaorui Zeng
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  4. Chuanhui Xie
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  5. Xiangliang Yang
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Correspondence to Haibing Li.

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Li, H., Chen, Y., Zeng, Z. et al. p-tert-Butylcalix[4]arene-1,3-bis(allyloxyethoxy)ether Coated Capillaries for Open-Tubular Electrochromatography. ANAL. SCI. 21, 717–720 (2005). https://doi.org/10.2116/analsci.21.717

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  • DOI: https://doi.org/10.2116/analsci.21.717

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