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Comparison of Anion-Exchange and Hydrophobic Interactions between Two New Silica-Based Long-Chain Alkylimidazolium Stationary Phases for LC

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Abstract

Two new silica-based long-chain alkylimidazolium stationary phases were prepared and characterized for their use in high-performance liquid chromatography. The stationary phases were both prepared by the reaction of chloropropyl silica with long-chain alkylimidazoles and were used to separate common inorganic anions. Hydrophobic interactions were also studied by the comparison of differential retention of various organic compounds. The alkyl chain length did not show an impact on the anion-exchange process but affected the hydrophobic interaction of the stationary phases.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (NSFC, NO. 20475058 and NO. 20527005).

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Authors and Affiliations

  1. Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, China

    Hongdeng Qiu, Xia Liu & Shengxiang Jiang

  2. Graduate School of Chinese Academy of Sciences, CAS, Beijing, 100039, China

    Hongdeng Qiu

  3. Department of Chemistry, Zhengzhou University, Zhengzhou, 458000, China

    Qiong Jiang

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  1. Hongdeng Qiu
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  2. Qiong Jiang
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  3. Xia Liu
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  4. Shengxiang Jiang
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Correspondence to Xia Liu.

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Qiu, H., Jiang, Q., Liu, X. et al. Comparison of Anion-Exchange and Hydrophobic Interactions between Two New Silica-Based Long-Chain Alkylimidazolium Stationary Phases for LC. Chroma 68, 167–171 (2008). https://doi.org/10.1365/s10337-008-0683-6

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