Silica Gel Powder 100-200 Mesh Chromatographic Support for Separation and Purification of Chinese Herbal Medicine and Liquid Adsorption

Introduction to Column Chromatography Silica Gel: Column chromatography silica gel, also known as chromatographic medium, is a high-purity white powder product made from silica gel through fine processing and preparation, with a certain particle size distribution range. It is widely used in pharmaceuticals, chemicals, plant extraction, biochemistry, and other industries.

II. Principle of Column Chromatography Silica Gel: The separation principle of silica gel chromatography is based on the different adsorption forces of substances on silica gel. Substances with higher polarity interact strongly with silica gel, resulting in longer retention times, while substances with weaker polarity interact weakly with silica gel, resulting in shorter retention times. Through repeated adsorption and desorption processes between the stationary phase and the mobile phase, substances are separated.

Column chromatography silica gel is mainly used for the removal of aromatic hydrocarbons from petroleum products, selective adsorption and separation of organic gases and liquids; used as a catalyst carrier and chromatographic support; and also for the preparation of high-purity substances.