Cerium(IV) Oxide As a Matrix for a Radionuclide Generator

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00369298" target="_blank" >RIV/68407700:21340/23:00369298 - isvavai.cz</a>
Result on the web
<a href="https://www.iaea.org/sites/default/files/23/10/cn-310_bk_of_abstracts_oct.pdf" target="_blank" >https://www.iaea.org/sites/default/files/23/10/cn-310_bk_of_abstracts_oct.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Cerium(IV) Oxide As a Matrix for a Radionuclide Generator
Original language description
This work was focused on a comprehensive characteristics of cerium(IV) oxide regarding its potential as a matrix of a radionuclide generator. Cerium(IV) oxide was prepared by calcination of cerium(III) nitrate and characterized with FT-IR spectrometry and X-ray powder diffraction. The mechanism of sorption on a surface of prepared material as well as active sorption sites and functional groups were studied via potentiometric titrations in pH range 2-11. The kinetic and sorption studies of prepared material were carried out with Ge-68 and Ga-68 as a model radionuclide pair in acidic media. described experiments provided the first comprehensive characteristics of cerium(IV) oxide as an ion-exchanger. It provides fast kinetics of sorption as in the timespan of 5 min, 99 % of Ge-68 is adsorbed. It can also be stated that the contamination of eluate by cerium was constant and held under 4 ppm for the whole tested period, which confirms the radiation and chemical stability of prepared material. It could also lead to conclusion that using cerium(IV) oxide in Ge68/Ga-68 radionuclide generator could significantly extend the shelf-life of such a device.
Czech name
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Czech description
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Project
<a href="/en/project/TJ01000334" target="_blank" >TJ01000334: Novel composite materials for medical radionuclides separation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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