Preparation of High Purity Plutonium Oxide Standards for Radiochemical Analysis

摘要

Due to the lack of suitable high level plutonium solution standards from a national accredited laboratory or commercial vendors, a well-characterized plutonium oxide was used to prepared radio-chemistry instrument calibration standards and working standards at Los Alamos National Laboratory (LANL). All the dilution and aliquoting steps were performed gravimetrically. The counting efficiency of a liquid scintillation counter obtained from the alpha activity of this plutonium oxide was compared to a commercial ↑(241)Am standardized solution. The results agreed to within 0.05%. The aliquots of the plutonium standard solutions and dilutions were then sealed in glass ampules for long term storage. #1998 Published by Elsevier Science Ltd. All rights reserved