Functional group exchanges definition

Capacity. Capacity is a measure of the quantity of ions, acid, or base removed (adsorbed) by an ion-exchange material. The quantity removed is direcdy correlated with the number of functional groups. Capacity is reported ia several different ways, but requites further definition because the word by itself does not cover ad situations. Total capacity is a measure of ad the functional groups on a resia and is recorded on a weight as wed as a volume basis. 

This technique was initially developed by Boyer (1959) and subsequently considerably extended to involve rate measurement of loss, or exchange, of essentially il possible atoms or functional groups, the determination of kinetic isotope effects, the definition of stereochemical processes, and investigation of activators and inhibitors (Wedler Shalango, 1982 Wedler, 1995 Purich AUison, 2000). 

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