Medical Definition of chromatography
: a process in which a chemical mixture carried by a liquid or gas is separated into components as a result of differential distribution of the solutes as they flow around or over a stationary liquid or solid phase—see affinity chromatography, cochromatography, column chromatography, electrochromatography, gas chromatography, gas-liquid chromatography, gel filtration, high-performance liquid chromatography, ion-exchange chromatography, liquid chromatography, paper chromatography, partition chromatography, radiochromatography, thin-layer chromatography
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