Separation of carrier-free115mIn from115Cd and132I from132Te over the zirconium oxide column |
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Authors: | D K Bhattacharyya S Basu |
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Institution: | (1) Nuclear Chemistry Division, Saha Institute of Nuclear Physics, 92, Acharya Prafulla Chandra Road, 700 009 Calcutta, (India) |
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Abstract: | A new way of radiochemical separation of carrier-free115mIn from115Cd and132I from132Te over the column of zirconium oxide is described. Activities of Cd and In in equilibrium in dilute acetic acid solution
were bufferred with dilute sodium acetate and fed into the column at a pH 7, when cadmium activity passed out unadsorbed and
the115mIn was adsorbed in the column. A study of the γ-ray peak of the separated115mIn showed that the product is of high radionuclidic purity. Te-I pair was separated by passing the weakly acidic solution
of132Te and132I in the presence of AgNO3 and Na2SO3, through the column where both activities were adsorbed. Iodine was washed outh with 5% sodium thiosulphate solution and
the retained tellurium activity was later washed out with 6M HNO3. The β-decay study showed that the separated132I product is of high radiochemical purity. The processes took less than half an hour and the yields were quantitative. |
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