Advanced activated carbon with extracts

Activated carbon is a non-polar adsorbent, mainly used for the removal of pigment and the separation of water-soluble components such as amino acids, sugars and some water-soluble glycosides, he is one of the main methods for the separation of water-soluble components. Activated carbon column chromatography is characterized by easy raw material source, low price, large sample load, good separation effect, suitable for mass preparation separation. However, due to the production of activated carbon raw materials, preparation methods and specifications are different, its adsorption force is not as easy to control as silica gel, alumina. Up to now, there is no ideal method to determine the level of adsorption, which limits the wide application of activated carbon column chromatography.granular activated charcoal
one Source and preparation of activated carbon
Activated carbon according to its source is usually divided into plant carbon, animal carbon and mineral carbon three kinds, respectively, the use of wood chips or plant fiber, animal bones, coal and so on by high temperature carbonization. At present, the commonly used medical activated carbon and activated carbon chromatography with wood chips as raw materials, add zinc chloride in 700-800 by high temperature carbonization, activation, and by appropriate methods to remove impurities. Due to the presence of various metal ions in plants and the addition of zinc chloride in the production process, although it has been properly treated before leaving the factory, it is inevitable to contain trace metal ions, which should be paid attention to when used. Activated carbons used for chromatography generally fall into the following three categories.Powdered activated carbon
The general use of medicinal or chemical pure activated carbon. This kind of activated carbon particles is very fine, in powder form, the total surface area is particularly large, the adsorption capacity is very strong, the adsorption capacity is also very large, is the strongest kind of activated carbon adsorption force. But because the particles are too fine, the flow rate is too slow in the process of chromatography, the operation of pressure or decompression is needed, the procedure is more complicated, and the adsorption selectivity of various components is also poor, so it is less used in chromatography.coal activated carbon supplier