Abstract
An easy method for the purification of labeled Neohydrin was studied by the use of the weak cation exchange resin, Amberlite IRC-50, in a small chromatographic column. The resin shows a high selectivity for the removal of mercury ions from a neutral or alkaline solution. This method allows, in one step, the collection of the pure labeled Neohydrin in a small volume, avoiding evaporation, neutralization, and centrifugation when using the alumina method.