chromatography
Pronunciation:
/ˌkɹəʊ.məˈtɒɡɹə.fi/noun
Definitions
Any of various techniques for the qualitative or quantitative separation of the components of mixtures of compounds; all characterised by the use of a mobile phase (gas or liquid) moving relative to a stationary phase (liquid or solid) - the differences between the rates of migration of the compounds between the two phases effects the separation.