chromatography

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chro·ma·tog·ra·phy / ˌkrōməˈtägrəfē/ • n. Chem. 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.DERIVATIVES: chro·mat·o·graph·ic / krōˌmatəˈgrafik/ adj.

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