W/O型エマルションを反応場とする微粒球状シリカの合成及びHPLC用充填剤への応用

概要

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Silica-gel particles were synthesized by the sol-gel method in W/O emulsion. Preparation conditions were studied for controlling the particle diameter of the silica-gel, i.e., reaction temperature, agitation speed, the value of hydrophile-lipophile-balance of surfactants, and the nature of reaction vessel. Properties of the silica-gel were determined by the scanning electron microscopic method, particle diameter distribution, specific surface area, and pore size distribution. The particle diameter of the silica-gel was about 5-15 μm. The silica-gel was applied to packing materials for high-performance liquid chromatography (HPLC) after modifying the surface of the silica-gel with octadecyl group. The amino acids and aromatic compounds were successfully separated and the quantitative analysis of phenylalanine could thoroughly be performed.
社団法人日本セラミックス協会の論文
1992-12-01