Producing of Monolithic Layers of Silica for Thin-Layer Chromatography by Sol-Gel Synthesis

In this work the approach for producing thin-layer chromatographic plates with monolithic layer of silica was proposed. The conditions of silica monolith synthesis were optimized by investigation of effects of different catalysts on the properties of obtained materials and addition of drying control chemical additive. The carrier for silica monolithic film was chosen and the method of surface modification was proposed. The properties of obtained monoliths were studied by FTIR and scanning electron microscopy (SEM). Produced thin-layer plates with monolithic layer of silica were successfully used for separation of test mixture of dyes.