¦ ̷ ̷ ̷ ̷ ̷ ̷ ¦ ̷ ̷ - noun
: chromatography in which the separation and deposition of components in the liquid phase is achieved by differences in their rate of migration through a column, layer, or impregnated paper containing an ion-exchange material and by the exchange of ions in solution for those of like charge in the ion-exchange material