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

Kód výsledku v 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>

Výsledek na webu

<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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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/TJ01000334" target="_blank" >TJ01000334: Nové kompozitní materiály pro separaci medicinálních radionuklidů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů