一种新型核壳色谱载体Al2O3/SiO2-10的制备及其离子色谱性能
Preparation and ion chromatographic properties of a new core-shell chromatographic support Al2O3/SiO2-10.
作者信息
Liang Xiaojing, Wang Shuai, Niu Jingang, Liu Xia, Jiang Shengxiang
机构信息
Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China.
出版信息
J Chromatogr A. 2009 Apr 10;1216(15):3054-8. doi: 10.1016/j.chroma.2009.01.072. Epub 2009 Jan 29.
A new stationary phase Al(2)O(3)/SiO(2)-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.
制备了一种新型固定相Al(2)O(3)/SiO(2)-10，并通过XPS、XRD、SEM和表面分析对其进行了表征。通过离子色谱（IC）中无机阴离子的分离研究了这种新型固定相的阴离子交换性能。流动相的pH值、洗脱液中Lewis碱的浓度和强度以及流动相的有机改性剂对无机阴离子的分离有强烈影响，并且分析物在新载体上的阴离子交换选择性与基于季铵苯乙烯的阴离子交换剂有显著差异。无机阴离子的分离结果表明，新型固定相具有出色的柱效、清晰的色谱峰和良好的保留时间。
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