摘要
以聚合诱导胶体凝聚法 (PICA)合成的窄粒径分布的TiO2 多孔微球 (表面积 :3 6 7m2 /g ,孔容 :0 3 0mL/g ,平均孔径 :3 2 2nm ,平均粒径 :3 5 μm)为基质 ,与十八碳三甲氧基硅烷的甲苯溶液共同回流 8h ,制得十八碳键合钛胶固定相 (ODT)。该固定相的含碳量为 2 87% (即 0 66μmol/m2 ) ,疏水选择性为 0 4 63 8。将其用于分离中性和碱性化合物时 。
Porous titania microspheres (surface area: 36 7 m 2/g, average pore volume: 0 30 mL/g, average pore diameter: 32 2 nm,average diameter: 3 5 μm) 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 μmol/m 2) and 0 463?8 , respectively ODT showed good chromatographic performances when it was used to separate the neutral and basic solutes using methanol solution as a mobile phase
出处
《色谱》
CAS
CSCD
北大核心
2001年第4期297-300,共4页
Chinese Journal of Chromatography
基金
国家自然科学基金资助项目 ( 2 95 75 2 0 1)
