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Determination of 126Sn in radioactive waste using TEVA® resin and gamma spectrometry

Research paper by Silvia Dulanská, Ján Bilohuščin, Boris Remenec, L’ubomίr Mátel, L’ubica Darážová

Indexed on: 15 Feb '15Published on: 15 Feb '15Published in: Journal of Radioanalytical and Nuclear Chemistry



Abstract

A new method employing TEVA® resin from Eichrom Technologies for determination of 126Sn in nuclear waste was developed. The influence of stable tin carrier and hydrochloric acid concentration on the separation and chemical yield of 113Sn was tested. The method is suitable for the separation of 126Sn isotope from hydrochloric acid solution. For the determination of 126Sn from radioactive waste samples, tin was first precipitated with ammonium sulfide in 0.5 mol L−1 HCl, dissolved in concentrated HCl, loaded in 1 mol L−1 HCl on TEVA® resin column and eluted with 2 mol L−1 HNO3 acid. Eluted tin fraction was directly measured by gamma spectrometry on HPGe detector.