Silica gel for column chromatography

PUKE   Silica gel for column chromatography

【character】
Chromatography silica gel is a kind of strong polar solid adsorbent with hydrogen bond. Its chemical composition is SiO2 · nH2O. The silica gel for column chromatography is a white powder particle, which is non-toxic and tasteless. It does not react with any other chemicals except hydrofluoric acid and hot strong base, and is insoluble in water and organic solvent.

Column chromatography silica gel is a porous material, and its surface is full of silicon hydroxyl. Because different components in the mixed system are adsorbed by the active site silicon hydroxyl in its pores, and on these active sites silicon hydroxyl, there are competitive adsorption among solvent molecules, solute molecules and solute molecules in the mixed system, which results in different retention time of different components in the column To achieve the purpose of separation and purification.

The raw material of puke column chromatography silica gel is specially customized according to the structural characteristics of column chromatography silica gel. It has specific pore size distribution and surface hydroxyl distribution, and has the characteristics of high purity, low impurity content, low dissolution of trace and trace impurities, and no pollution to the separated substances. In the production process, the patented vibrosieve that conforms to the principle of human bionics is used, and the particle size distribution of the screened products is uniform, the theoretical plate number is high, the column efficiency is high, the peak capacity is large, and the resolution is high. When used, the flow rate of both the atmospheric column and the pressurized column is stable.

[purpose]
Column chromatography silica gel is widely used in pharmaceutical science, plant science, bioengineering, fine chemical industry, organic synthesis, material science, life science, environmental science, food and other fields.

[Specification]
There are two specifications of silica gel for column chromatography: class I reagent grade; class II Industrial Grade

粒度对照表

※（GB vs. ASTM, marked with ★ is GB vs. Chinese mesh）

【Technical indicators】

[storage]



Store in a dry and ventilated place, do not store together with volatile substances to avoid moisture absorption or absorption of other chemicals affecting the separation performance.



[customized]



Particle size, pore volume, pore diameter, pH, moisture, packaging, impurity content can be produced according to user agreement.