摘要
以氧氯化锆水解得到溶胶，然后以Span－80和Tween－85混合非离子表面活性剂为乳化剂、环己烷为有机相制成W／O型乳状液，用其控制粒度，可得到2～10μm的ZrO2凝胶微球。通过比表面积、孔容、孔径测试及对6种不同性质的物质的吸附试验表明，该微球产物可作为高效液相色谱填料。
Zirconia sol was prepared by dissolving zirconyl chloride in water, and the sol formed gel in water/cyclohexane W/O style emulsion to obtain monodispersed particles of ZrO2 (2-10 μm). After being washed and classified, the zirconia particles (3-5 μm) were collected and calcined at 800 ℃ to remove the organic residues on the surface of the particles. The mean pore diameter, specific surface area and specific pore volume of the zirconia particles were found to be 14. 2 urn, 11. 2 m2/g, and 0. 04 cm3/g, respectively, by means of the BET method. The adsorption behavior of various organic compounds on the ZrO2 shows it will be useful as a column packing material for high performance liquid chromatography.
出处
《色谱》
CAS
CSCD
北大核心
1999年第3期284-286,共3页
Chinese Journal of Chromatography
基金
湖北省自然科学基金
关键词
氧化锆
微球
填料
高效液相色谱
簔irconia, W/O style emulsion, adsorption isotherm, packing material
