http://hdl.handle.net/20.500.12128/6853
Title: | Separation of 44Sc from Natural Calcium Carbonate Targets for Synthesis of 44Sc-DOTATATE |
Authors: | Kilian, Krzysztof Cheda, Łukasz Sitarz, Mateusz Szkliniarz, Katarzyna Choiński, Jarosław Stolarz, Anna |
Keywords: | scandium-44; radiochemical separation; DOTATATE; solid target processing |
Issue Date: | 2018 |
Citation: | Molecules, Vol. 23, iss. 7 (2018), Art. No. 1787 |
Abstract: | The rapid increase in applications of scandium isotopes in nuclear medicine requires new efficient production routes for these radioisotopes. Recently, irradiations of calcium in cyclotrons by , deuteron, and proton beams have been used. Therefore, effective post-irradiation separation and preconcentration of the radioactive scandium from the calcium matrix are important to obtain the pure final product in a relatively small volume. Nobias resin was used as a sorbent for effective separation of 44Sc from calcium targets. Separation was performed at pH 3 using a column containing 10 mg of resin. Scandium was eluted with 100 L of 2 mol L1 HCl. Particular attention was paid to the reduction of calcium concentration, presence of metallic impurities, robustness and simple automation. 44Sc was separated with 94.9 2.8% yield, with results in the range of 91.7–99.0%. Purity of the eluate was confirmed with ICP-OES determination of metallic impurities and >99% chelation efficiency with DOTATATE, followed by >36 h radiochemical stability of the complex. A wide range of optimal conditions and robustness to target variability and suspended matter facilitates the proposed method in automatic systems for scandium isotope separation and synthesis of scandium-labeled radiopharmaceuticals. |
URI: | http://hdl.handle.net/20.500.12128/6853 |
DOI: | 10.3390/molecules23071787 |
ISSN: | 1420-3049 |
Appears in Collections: | Artykuły (WNŚiT) |
File | Description | Size | Format | |
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Kilian_Separation_of_44Sc_from_natural_Calcium_Carbonate_targets.pdf | 740,68 kB | Adobe PDF | View/Open |
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