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

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• 作者：Hongdeng Qiu ; Qiong Jiang ; Xia Liu and Shengxiang Jiang
• 关键词：Anion ; exchange chromatography ; Alkylimidazolium ; Ionic liquids ; Stationary phase ; Hydrophobic interaction
• 刊名：Chromatographia
• 出版年：2008
• 出版时间：August, 2008
• 年：2008
• 卷：68
• 期：3-4
• 页码：167-171
• 全文大小：330.7 KB

文摘

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.