What is the chromatography?in which field used and what are kind of it?
Chromatography is a chemical separation process based on the movement of molecules through a solid medium of some kind. It can be demonstrated with a black ink pen, some paper and a glass of water. The paper is marked with a black spot of ink. It is set in the water, which soaks into the paper. As it travels through the paper, it carrys the ink along and if this is a mixture, the seperate ink colors will begin to appear like a rainbow. “Chroma” is the latin term for “color”. The paper is known as the “stationary phase” and the water is the “mobile phase” in terms of chromatography. This process is used in chemistry to identify compounds. A known standard is run against a sample. If the sample contains what is in the standard, both spots will have moved the same distance in the stationary phase. This is known as thin layer chromatography and uses a glass plate with a porous silica coating. The mobile phase is usually a mixture of organic solvents. After the plate is developed, it is som
