Studies of gel metal-oxide composite samples as filling materials for W-188/Re-188 generator column

0338840 - ÚJF 2010 RIV NL eng J - Journal Article
Iller, E. - Polkowska-Motrenko, H. - Lada, W. - Wawszczak, D. - Sypula, M. - Doner, K. - Konior, M. - Milczarek, J. - Zoladek, J. - Ráliš, Jan
Studies of gel metal-oxide composite samples as filling materials for W-188/Re-188 generator column.
Journal of Radioanalytical and Nuclear Chemistry. Roč. 281, č. 1 (2009), s. 83-86. ISSN 0236-5731. E-ISSN 1588-2780.
[9th International Conference on Nuclear Analytical Methods in the Life Sciences. Lisbon, 07.09.2008-12.09.2008]
Institutional research plan: CEZ:AV0Z10480505
Keywords : W-188/Re-188 generator * W-Zr gels * W-Zr composites * Sol-gel process
Subject RIV: CH - Nuclear ; Quantum Chemistry
Impact factor: 0.631, year: 2009

Studies of zirconium tungstate gels for production of W-188/Re-188 generators using tungsten of natural isotopic abundance irradiated in a moderate flux nuclear reactor have been carried out. Composites of WO3-ZrO2 have been synthesized by Complex Sol-Gel Process developed in INCT and other techniques. Different proportions of metal oxides and temperature were applied. Elution profiles of columns filled with gel samples irradiated in nuclear reactor have been studied using as an eluent 0.9% NaCl solution. Purity of Re-188 fraction and efficiency of elution were determined. Ageing effect on elution efficiency was also examined. It was found that the best elution performance showed zirconium tungstate gel prepared in 110 A degrees C or 500 A degrees C in which molar ratio of metal oxides was 1:2.
Permanent Link: http://hdl.handle.net/11104/0005719