elution n : the process of extracting one material from another by washing with a solvent to remove adsorbed material from an adsorbent (as in washing of loaded ion-exchange resins to remove captured ions); used to obtain uranium ions
From the verb elute.
- Elution, Merriam-Webster's Online Dictionary, 2007.
Elution refers to the emergence of chemicals from the column of a chromatograph. The chemicals then typically flow into a detector of some description. Predicting and controlling the order of elution is a key aspect of column chromatographic methods.