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Choice of Inorganic Materials as 68Ge/68Ga Generator: An Intercomparison
Authors: Kamalika Sen1, Wouter A. P. Breeman2 and H. Th. Wolterbeek3
| Affiliation: | 1 Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata 700009, India |
| 2 Department of Nuclear Medicine, Erasmus MC Rotterdam, Rotterdam, The Netherlands | |
| 3 Department of Radiation, Radionuclides and Reactors, Section RIH (Radiation and Isotopes in Health), Faculty of Applied Sciences, Technical University Delft, Mekelweg 15, 2629 JB Delft, The Netherlands |
Published in:
Ion Exch. Lett. 2011,
4(4),
32-43
Permanent link to this page: http://iel.vscht.cz/abstracts/1803-4039-04-0032.htm
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Keywords: inorganic oxides; zeolite; Ge/Ga generator; ICP-OES
Abstract: Adsorption properties of some inorganic oxide adsorbers were studied with varying pH conditions of HCl and HNO3 for Ge and Ga as a trial for a 68Ga generator system with their stable isotopes. Adsorption properties were also studied with varying particle size of SiO2. Titanium oxide at its various oxidation states as well as morphological forms was also studied for similar adsorption properties. It was observed that zeolite, a microporous aluminosilicate could offer a favourable condition for use as 68Ge/68Ga generator system at pH 1 with HCl. It was also concluded that the TiO2 powder (Degussa, P-25), which contains anatase and rutile phases in a ratio of about 3:1 can be best utilized for separation of Ga from Ge at pH 1 with HCl. This titania is a mixture of anatase and rutile particles of TiO2 that separately form their agglomerates. Individual studies with rutile and anatase TiO2 failed to show such effectiveness to be utilized as the above generator system.