Application of ion-exchange reactions between membranes and resins.
The separation of a solution of an electrolyte from an ion-exchange resin by an ion-exchange membrane, where the charge sign of the fixed sites is the same, results in a process that is comparable to Donnan dialysis in its overall effect. That is, the counter-ions from the resin can be exchanged for ions of the same charge sign in the electrolyte. The reaction is demonstrated and the efficiency of the process evaluated by monitoring the metathesis of carbonic acid from sodium carbonate. An application of the metathesis of a non-electrolyte to a preconcentration method for ion chromatography is demonstrated.
Cox
J A
JA
Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, IL 62901, U.S.A.
Tanaka
N
N