Today, Xiaobian brings you a chemical product - silica gel for column chromatography.
With the development of science and technology, the requirements for separation and purification of mixed substances are increasing. The appearance of silica gel for column chromatography undoubtedly brings good news to the development of bioengineering technology. Column chromatography silica gel is a white and uniform particle, and its molecule contains cross chain structure siloxane. According to the different adsorption retention time of different components, the purpose of separation and purification is achieved. The silica gel can withstand the pressure within 30MPa, and has good thermal and chemical stability. At the same time, it can selectively adsorb and purify the isomers in multi-component solution.
Column chromatography silica gel raw material is based on the demand and the characteristics of the silica gel, using graded frequency conversion technology to reduce the presence of small particles, ensure the uniformity of screening particle size, reduce the resistance in the process of separation and purification, so as to produce silica gel with certain pore structure and low impurity content. In the preparation process, the products with different average pore can be produced by controlling different process conditions to adapt to the separation and purification of substances with different properties, molecular weight and molecular structure. When the purity of the silica gel is more than 99%, it can be compared with the organic column packing. Silica gel is a kind of solid colloid with silica as the basic material. It has a compact structure, even if the organic matter is directly discarded and the target product is polluted.
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