Separation of radium and actinium using zirconia

Zirconia was investigated as a radiation-resistant support for radium and actinium aqueous ion separations. Acetate and total metal ion concentrations were experimentally evaluated as factors that could affect retention using La and Ba surrogates. Pseudo-second order rate constants were derived and...

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Bibliographic Details
Published inApplied radiation and isotopes Vol. 185; p. 110238
Main Author Brown, M. Alex
Format Journal Article
LanguageEnglish
Published England Elsevier Ltd 01.07.2022
Elsevier
Subjects
07 ISOTOPE AND RADIATION SOURCES
Actinium
Alpha therapy
Lead
Medical isotopes
Radiochemistry
Radium
Radium - analysis
Separations
Zirconia
Zirconium
Zirconia
Medical isotopes
Radiochemistry
Actinium
Lead
Alpha therapy
Radium
Separations
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Summary:Zirconia was investigated as a radiation-resistant support for radium and actinium aqueous ion separations. Acetate and total metal ion concentrations were experimentally evaluated as factors that could affect retention using La and Ba surrogates. Pseudo-second order rate constants were derived and the uptake of La was determined to be endothermic. Elution profiles containing Ba, La, 228Ra, 228Ac, and 212Pb are presented and discussed. •Actinium-225 is being developed for targeted alpha therapy and can be produced using radium targets.•Actinium and radium can induce high alpha doses to organic resins that complicate separations.•Inorganic supports such as zirconia provide radiation protection and efficient metal ion separations.•Specific pH windows and background buffer concentrations were determined to optimize separations of isotopes.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
AC02-06CH11357
USDOE Office of Science (SC), Basic Energy Sciences (BES)
ISSN:0969-8043
1872-9800
DOI:10.1016/j.apradiso.2022.110238