Authors:
N. Bores Oak Ridge National Laboratory, Quality Systems and Services Division, Intercomparison Studies Program, Oak Ridge, TN 37831, USA

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M. Schultz Departments of Radiation Oncology Radiology, and Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA

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J. Rankin Oak Ridge National Laboratory, Quality Systems and Services Division, Intercomparison Studies Program, Oak Ridge, TN 37831, USA

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A. Denton Oak Ridge National Laboratory, Quality Systems and Services Division, Intercomparison Studies Program, Oak Ridge, TN 37831, USA

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G. Payne Oak Ridge National Laboratory, Quality Systems and Services Division, Intercomparison Studies Program, Oak Ridge, TN 37831, USA

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Abstract  

The Intercomparison Studies Program (ISP) at the Oak Ridge National Laboratory (ORNL, Oak Ridge, TN USA) provides natural-matrix human urine quality-assurance/quality-control (QA/QC) samples to radiobioassay analysis laboratories. Samples are provided to these laboratories as “single-blind” or “double-blind” unknowns, spiked with radioactive-solution standards at “low” levels (e.g., 0.7–7 Bq g−1 for 3H and 0.7–7 Bq kg−1 for 90Sr). Participants use the results as a tool for self-evaluation and a measure of performance. In this paper, sample preparation and the results of testing during the years 2001–2005 for 3H and 90Sr are presented and discussed.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)