Thin Layer Chromatography
A technique for separating components in a mixture on the basis of their differing polarities.
A spot of sample is placed on a flat sheet coated with silica and then carried along by a solvent that soaks the sheet. Different components will move different distances over the surface.
TLC is a useful screening technique in clinical chemistry; for example, it can be used to detect the presence of drugs in urine.
See also: Chromatography.
- just Chromatography Everything about Chromatography and Analytical Chemistry.