Semi-micro preparation and characterization of bonded phase ODS-silica prepared from rice husk silica

Abstract

Bonded phase ODS-silica has been prepared using purified silica prepared from rice husk by burning, reflux with sodium hydroxide solution and precipitation as a gel. The gel was spray dried, further purified by washing with concentrated hydrochloric acid then distilled water prior to vacuum drying and silanization and end-capping. The product's physical and chromatographic properties are reported. © Springer-Verlag 2006.