ABSTRACT
Thin-layer chromatography is a variant of liquid chromatography. Its essence is that the stationary phase is spread on a relatively large, plane surface (glass, aluminum, or acetyl cellulose plate) in a thin layer of the thickness of 0.1 to 0.4 mm. The material of the stationary phase is generally silica gel (e.g., Kieselgur G), mixed with some gypsum in order to attain good adhesion to plate, or else aluminum oxide.
