Ion exchange resin regeneration degree test method

The invention relates to an ion exchange resin regeneration degree test method. The method comprises: employing pure water to wash cation exchange resin subjected to regeneration treatment, then passing an excess NaCl solution through the resin under a dynamic condition, collecting the eluate, measuring the amount of hydrogen ions therein and calculating the hydrogen type group capacity QH of the cation exchange resin, transforming the cation exchange resin to sodium type, and measuring the complete exchange capacity QT; or reacting anion exchange resin subjected to regeneration treatment with excess strong monoacid, calculating the oxyhydrogen type group capacity QOH of the anion exchange resin, transforming the anion exchange resin to oxyhydrogen type, and measuring the maximum regeneration capacity to serve as the complete exchange capacity Qwhole of the anion exchange resin; calculating the regeneration degree eta of the ion exchange resin according to the formula of eta cation=QH/Qwhole*100% or eta anion=QOH/Qwhole*100%, with the unit of QH, Qwhole and QOH all being mmol/g. The method provided by the invention can realize quantitative measurement of the regeneration degree of high-speed mixed bed operation resin, and can perform quantitative determination on the resin regeneration effect.