Evaluation of measurements of Pu, Pu and Pu in urine at the microbecquerel level using thermal ionization mass spectrometry and alpha-spectrometry at Los Alamos National Laboratory: Results of a two year comparison test (LA-UR-06-8055)

The Intercomparison Studies Program (ISP) at the Oak Ridge National Laboratory (ORNL, Oak Ridge, TN, USA) provides natural-matrix urine quality-assurance/quality-control (QA/QC) samples to radiobioassay analysis laboratories. In 2003, a single laboratory (Los Alamos National Laboratory LANL, Los Ala...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2008-05, Vol.276 (2), p.513-518
Main Authors: Bores, N E, Schultz, M K, Rankin, J M, Denton, A J, Payne, G F, Steiner, R E, Lamont, S P, Ortiz, S B
Format: Article
Language:English
Online Access:Get full text
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Summary:The Intercomparison Studies Program (ISP) at the Oak Ridge National Laboratory (ORNL, Oak Ridge, TN, USA) provides natural-matrix urine quality-assurance/quality-control (QA/QC) samples to radiobioassay analysis laboratories. In 2003, a single laboratory (Los Alamos National Laboratory LANL, Los Alamos NM USA) requested a change in the test-samples provided previously by the ISP. The change was requested to evaluate measurement performance for analyses conducted using thermal-ionization mass spectrometry (TIMS). Radionuclides included Pu at two activity levels (75-150 muBqsample and 1200-1600 muBqsample) and Pu (3700-7400 muBqsample). In addition, Pu was added to the samples so that the Pu specific activity was 3700-7400 muBqsample. In this paper, the results of testing during the period May, 2003 through September, 2005 are presented and discussed.
ISSN:0236-5731
DOI:10.1007/s10967-008-0535-8