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Title: Plutonium oxalate precipitation for trace elemental determination in plutonium materials

In this study, an analytical chemistry method has been developed that removes the plutonium (Pu) matrix from the dissolved Pu metal or oxide solution prior to the determination of trace impurities that are present in the metal or oxide. In this study, a Pu oxalate approach was employed to separate Pu from trace impurities. After Pu(III) was precipitated with oxalic acid and separated by centrifugation, trace elemental constituents in the supernatant were analyzed by inductively coupled plasma-optical emission spectroscopy with minimized spectral interferences from the sample matrix.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [2] ;  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Atomic Weapons Establishment, Aldermaston (United Kingdom)
Publication Date:
OSTI Identifier:
1255230
Report Number(s):
LA-UR--14-29721
Journal ID: ISSN 0236-5731; PII: 4218
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry
Additional Journal Information:
Journal Volume: 307; Journal Issue: 2; Journal ID: ISSN 0236-5731
Publisher:
Springer
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY plutonium; oxalate precipitation; trace elements; ICP; inductively coupled plasma-optical emission spectroscopy (ICP-OES); trace impurity; plutonium; plutonium oxalate