chromatographic adsorption

chromatographic adsorption

[krō¦mad·ə¦graf·ik ad′sȯrp·shən]
(analytical chemistry)
Preferential adsorption of chemical compounds (gases or liquids) in an ascending molecular-weight sequence onto a solid adsorbent material, such as activated carbon, alumina, or silica gel; used for analysis and separation of chemical mixtures.