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层层纳米自组装锆基色谱填料的表面性质研究
Surface Properties of Zirconia-based Supports for HPLC
【Abstract】 The surface properties of zirconia-based supports,ZrO-2/SiO-2 and ZrO-2,were compared.ZrO-2/SiO-2 prepared by layer-by-layer self-assembly(LbL SA) technique showed more favorable characteristics for HPLC applications compared with ZrO-2 prepared by modified oil-emulsion method.The specific surface area and pore volume of ZrO-2/SiO-2 were about 18 and 20 times of those of ZrO-2 respectively.The pore of ZrO-2/SiO-2 support was ideal cylindrical shape,but ZrO-2 support had some \!ink bottle\" shaped-pores which was unfavorable for HPLC separations.Pore size distribution of ZrO-2/SiO-2 supports was more uniform than that of ZrO-2 supports.
【关键词】 氧化锆基质填料；
分子自组装；
表面性质；
ZrO2/SiO2；
ZrO2；
【Key words】 Zirconia-based HPLC supports； Molecular self-assembly technique； Surface property； ZrO-2/SiO-2； ZrO-2；
【Key words】 Zirconia-based HPLC supports； Molecular self-assembly technique； Surface property； ZrO-2/SiO-2； ZrO-2；
【基金】 国家自然科学基金(批准号:20375045);河北省自然科学基金(批准号:503167);河北师范大学博士基金(批准号:L2004B09)资助
- 【文献出处】 高等学校化学学报 ,Chemical Research In Chinese Universities , 编辑部邮箱 ,2005年11期
- 【分类号】O657.7
- 【被引频次】3
- 【下载频次】160