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Chromatographic separation of the theranostic radionuclide 111Ag from a proton irradiated thorium matrix.
Mastren, Tara; Radchenko, Valery; Engle, Jonathan W; Weidner, John W; Owens, Allison; Wyant, Lance E; Copping, Roy; Brugh, Mark; Nortier, F Meiring; Birnbaum, Eva R; John, Kevin D; Fassbender, Michael E.
Afiliação
  • Mastren T; Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA.
  • Radchenko V; Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA.
  • Engle JW; Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA.
  • Weidner JW; Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA.
  • Owens A; Nuclear Security and Isotope Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
  • Wyant LE; Nuclear Security and Isotope Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
  • Copping R; Nuclear Security and Isotope Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
  • Brugh M; Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA.
  • Nortier FM; Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA.
  • Birnbaum ER; Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA.
  • John KD; Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA.
  • Fassbender ME; Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA. Electronic address: mifa@lanl.gov.
Anal Chim Acta ; 998: 75-82, 2018 Jan 15.
Article em En | MEDLINE | ID: mdl-29153089
Column chromatographic methods have been developed to separate no-carrier-added 111Ag from proton irradiated thorium targets and associated fission products as an ancillary process to an existing 225Ac separation design. Herein we report the separation of 111Ag both prior and subsequent to 225Ac recovery using CL resin, a solvent impregnated resin (SIR) that carries an organic solution of alkyl phosphine sulfides (R3P = S) and alkyl phosphine oxides (R3P = O). The recovery yield of 111Ag was 93 ± 9% with a radiochemical purity of 99.9% (prior) and 87 ± 9% with a radiochemical purity of 99.9% (subsequent to) 225Ac recovery. Both processes were successfully performed with insignificant impacts on 225Ac yields or quality. Measured equilibrium distribution coefficients for silver and ruthenium (a residual contaminant) on CL resin in hydrochloric and nitric acid media are reported, to the best of our knowledge, for the first time. Additionally, measured cross sections for the production of 111Ag and 110mAg for the 232Th(p,f)110m,111Ag reactions are reported within.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Prótons / Prata / Actínio / Tório / Nanomedicina Teranóstica Idioma: En Ano de publicação: 2018 Tipo de documento: Article
Texto completo
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XML
PubMed Links
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Prótons / Prata / Actínio / Tório / Nanomedicina Teranóstica Idioma: En Ano de publicação: 2018 Tipo de documento: Article