Jiang Z T, Zuo Y M
Department of Chemistry, Nankai University, Tianjin 300071, China.
Se Pu. 2001 Jul;19(4):297-300.
Porous titania microspheres (surface area: 36.7 m2/g, average pore volume: 0.30 mL/g, average pore diameter: 32.2 nm, average diameter: 3.5 microns) with a very narrow particle size distribution, were synthesized by refluxing polymerized-induced colloid aggregation (PICA), with octadecyltrimethoxysilane in toluene as a solvent for 8 h, and octadecyltitania stationary phase (ODT) was obtained. The carbon content and hydrophobic selectivity of the stationary phase were 2.87% (i.e. 0.66 mumol/m2) and 0.4638, respectively. ODT showed good chromatographic performances when it was used to separate the neutral and basic solutes using methanol solution as a mobile phase.
通过在甲苯中以十八烷基三甲氧基硅烷为溶剂回流聚合诱导胶体聚集（PICA）8小时，合成了粒径分布非常窄的多孔二氧化钛微球（表面积：36.7 m2/g，平均孔体积：0.30 mL/g，平均孔径：32.2 nm，平均直径：3.5微米），并获得了十八烷基二氧化钛固定相（ODT）。固定相的碳含量和疏水选择性分别为2.87%（即0.66 μmol/m2）和0.4638。当使用甲醇溶液作为流动相时，ODT在分离中性和碱性溶质方面表现出良好的色谱性能。
