Preparation and ion chromatographic properties of a new core-shell chromatographic support Al2O3/SiO2-10 |
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| Authors: | Xiaojing Liang Shuai Wang Jingang Niu Xia Liu Shengxiang Jiang |
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| Institution: | 1. Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;2. Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | A new stationary phase Al2O3/SiO2-10 was prepared and characterized by XPS, XRD, SEM and surface analysis. The anion exchanger properties of this new stationary phase were investigated by the separation of inorganic anions in ion chromatography (IC). pH of the mobile phase, concentration and strength of the Lewis base of the elute, and the organic modifier of the mobile phase strongly affect the separation of inorganic anions, and anion exchange selectivities of the analyte on the new support are significantly different from quaternary ammonium styrene based anion exchangers. The result of separation of inorganic anions shows that the new stationary phase provides excellent column efficiency, well-defined chromatographic peaks and favorable retention times. |
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| Keywords: | Aluminium isopropoxide Poly (sodium-p-styrenesulfonate) Core-shell chromatographic support Alumina |
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