[Preparation and chromatographic characteristics of octadecyl bonded titania stationary phase for high performance liquid chromatography].
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.
Jiang
Z T
ZT
Department of Chemistry, Nankai University, Tianjin 300071, China.
Zuo
Y M
YM
D000814:Aniline Compounds / Q000302:isolation & purification; D001554:Benzene / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation* / Q000379:methods; D017646:Organosilicon Compounds; D014025:Titanium
D000814:Aniline Compounds; D017646:Organosilicon Compounds; C009495:titanium dioxide; C102207:n-octadecyltrimethoxysilane; D014025:Titanium; D001554:Benzene; C023650:aniline