Chromatography

[Tracie Lynn]

a scientific method of finding what separate chemicals are in a substance by passing it through a material such as paper

[Ernesto]

a method of finding what separate substances a mixture contains by making it flow, as a liquid or gas, through a material such as paper, which different substances will flow through at different speeds

[Luis Fok]

The separation of a mixture by passing it in solution or suspension or as a vapor (as in gas chromatography) through a medium in which the components move at different rates.