Solid phase extraction of europium and uranium using Tulsion CH-90 resin

A procedure for the pre-concentration and separation of trace amounts of Eu and U by solid phase extraction using Tulsion CH-90 resin (with imino diacetate functional group) has been developed. The determinations of europium and uranium have been carried out by a radiotracer technique using 152,154Eu and 233U radionuclides. The experiments were carried out using both batch and column techniques. Parameters such as equilibration rate, effect of pH, sorption and desorption of metal ions have been studied. The maximum sorption capacities for Eu and U were found to be 0.31 mmolg–1 at pH 5.3 and 0.96 mmolg–1 at pH 3.1 respectively.