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Kurakina ES, Wharton L, Hoehr C, Orvig C, Magomedbekov EP, Filosofov D, Radchenko V. Improved separation scheme for 44Sc produced by irradiation of natCa targets with 12.8 MeV protons. Nucl Med Biol 2021; 104-105:22-27. [PMID: 34847480 DOI: 10.1016/j.nucmedbio.2021.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/27/2021] [Accepted: 11/08/2021] [Indexed: 11/25/2022]
Abstract
INTRODUCTION 44Sc is of great interest as a positron emission tomography (PET) radionuclide due to its suitable nuclear characteristics: Eβ+max = 1.47 MeV, branching ratio 94.3% and convenient half-life of 3.97 h. Here, 44Sc was produced via the widely used reaction 44Ca (p,n)44Sc using natural calcium as a target. METHODS The irradiation was performed at TRIUMF using the 13 MeV cyclotron. The separation consisted of a combination of DGA branched resin and Dowex 50Wx8 (200-400 mesh). The distribution coefficients of Sc3+ on Dowex 50Wx8 (NH4+ form, 200-400 mesh) with ammonium α-hydroxyisobutyrate (pH = 4.8) medium were determined in this study. RESULTS AND CONCLUSION The tested scheme allows both a reliable separation of 44Sc from the target material as well as from the other competitive metals and a final fraction with high specific activity. The achieved radiochemical yield was 95 ± 3%.
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Affiliation(s)
- E S Kurakina
- Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, Dubna 141980, Russian Federation; Department of High-Energy Chemistry and Radioecology, D. Mendeleev University of Chemical Technology of Russia, Moscow 125047, Russian Federation; Life Sciences Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - L Wharton
- Life Sciences Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada; Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - C Hoehr
- Life Sciences Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada; Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia V8W 2Y2, Canada; Department of Computer Science, Mathematics, Physics, and Statistics, University of British Columbia Okanagan, Kelowna, British Columbia V1V 1V7, Canada
| | - C Orvig
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - E P Magomedbekov
- Department of High-Energy Chemistry and Radioecology, D. Mendeleev University of Chemical Technology of Russia, Moscow 125047, Russian Federation
| | - D Filosofov
- Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, Dubna 141980, Russian Federation
| | - V Radchenko
- Life Sciences Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada; Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada.
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Kurakina ES, Velichkov AI, Karaivanov DV, Marinova AP, Marinov GM, Radchenko V, Khushvaktov ZK, Magomedbekov EP, Filosofov DV. Production of 111In and Radioisotopes of Te and Sn from an Antimony Target Irradiated with High-Energy Protons. Radiochemistry 2020. [DOI: 10.1134/s1066362220030121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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