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Selenium determinations for the assessment of sample stability in specimen banking

Conference · · Transactions of the American Nuclear Society; (USA)
OSTI ID:5606371
A comprehensive approach to the analysis of human livers has been developed in a pilot program for a National Environmental Specimen Bank (NESB). Since 1980, the pilot NESB program has examined the collection, processing, storage, and analysis of human livers. Neutron activation analysis (NAA) played a major role in the implemented analytical scheme. Up to 28 elements have been determined by NAA in 96 human livers, which were selected from 3 yr of collection-1980, 1982, and 1984-to establish baseline concentration values at the time the samples were collected and banked. Recently, samples banked in 1980 were withdrawn to be reanalyzed for the assessment of their long-term stability under different storage conditions. Choosing selenium as an example, this paper discusses the NAA procedures needed to arrive at highly precise and accurate data as the basis for the stability evaluation.
OSTI ID:
5606371
Report Number(s):
CONF-880601--
Conference Information:
Journal Name: Transactions of the American Nuclear Society; (USA) Journal Volume: 56
Country of Publication:
United States
Language:
English