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| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a stew of meat, vegetables, potatoes, etc. |
| gas chromatography | |
| —n | |
| Also called: gas-liquid chromatography a technique for analysing a mixture of volatile substances in which the mixture is carried by an inert gas through a column packed with a selective adsorbent and a detector records on a moving strip the conductivity of the gas leaving the tube. Peaks on the resulting graph indicate the presence of a particular component | |
gas chromatography n.
Chromatographic process in which a mixture of gases or vapors are separated by their differential adsorption by a stationary phase.