Adsorption chromatography is still widely used for structural isomer separations in both column and thin-layer chromatography formats on activated (dried) silica or alumina supports.
But where it is found, it's used relentlessly, displacing all other frontline analysis techniques (such as thin-layer chromatography) almost completely.
Thin-layer chromatography can be used to monitor the progress of a reaction, identify compounds present in a given mixture, and determine the purity of a substance.
