Composite ion exchanger for removal of sodium-24 from mineralizates of biological materials in neutron activation analysis |
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| Authors: | H Polkowska-Motrenko W ?mijewska B Bartos A Bilewicz J Narbutt |
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| Institution: | (1) Department of Analytical Chemistry, Institute of Nuclear Chemistry and Technology, ul. Dorodna 16, 03-195 Warszava, Poland;(2) Department of Radiochemistry, Institute of Nuclear Chemistry and Technology, ul. Dorodna 16, 03-195 Warszava, Poland |
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| Abstract: | A composite ion exchanger containing hydrated antimony pentoxide (HAP) in polystyrene-divinylbenzene matrix has been prepared. Its sorption properties with respect to Na, As, Au, Cd, Cu, Ga, Hg, In, K, La, Mn, Mo (Tc), Pd, Pt, Sb, W and Zn have been examined. Sodium is quantitatively retained on the sorbent from 8M HCl solution as well as from a mixture of conc. H2SO4+ conc. HNO3+H2O (1+1+2). As, W, Cd and Sb are partially retained, while the remaining elements are not retained and can be quantitatively eluted. The composite ion exchanger is stable to oxidizing acid media and it can be directly applied to separation of24Na from mineralizates of neutron-irradiated biological materials. |
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