Effective separation of Am(III) and Cm(III) using a DGA resin via the selective oxidation of Am(III) to Am(V)

A new method was developed to effectively separate Am(III) from Cm(III). Am(III) was selectively oxidized to Am(V) using a mixture of Na 2 S 2 O 8 , Ag(I), and NaOCl in 0.01 M HNO 3 . Cm(III) was selectively retained on a DGA resin, while Am(V) had no retention. A separation factor of 110 ± 20 was u...

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Bibliographic Details
Published inJournal of radioanalytical and nuclear chemistry Vol. 321; no. 1; pp. 227 - 233
Main Authors Kazi, Zakir, Guérin, Nicolas, Christl, Marcus, Totland, Marina, Gagné, Alexandre, Burrell, Sean
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 15.07.2019
Springer Nature B.V
Subjects
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Mass spectrometry
Nuclear Chemistry
Nuclear Physics
Oxidation
Physical Chemistry
Resins
Separation
Sodium hypochlorite
Sodium persulfate
Spent nuclear fuels
Accelerator mass spectrometry (AMS)
Americium
Nuclear fuel
Separation
Curium
DGA resin
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Summary:A new method was developed to effectively separate Am(III) from Cm(III). Am(III) was selectively oxidized to Am(V) using a mixture of Na 2 S 2 O 8 , Ag(I), and NaOCl in 0.01 M HNO 3 . Cm(III) was selectively retained on a DGA resin, while Am(V) had no retention. A separation factor of 110 ± 20 was usually obtained from a single separation. The new separation method was applied to determine Cm isotopes 244, 245 and 246 by accelerator mass spectrometry (AMS) in spent nuclear fuel samples.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-019-06571-0