Abstract
The Savannah River Site Environmental Bioassay Lab participated in the 2007 NRIP Emergency Response program administered by the National Institute for Standards and Technology (NIST) in May, 2007. A new rapid column separation method was applied directly to the NRIP 2007 emergency urine samples, with only minimal sample preparation to reduce preparation time. Calcium phosphate precipitation, used to preconcentrate actinides and 90Sr in NRIP 2006 urine and water samples, was not used for the NRIP 2007 urine samples. Instead, the raw urine was acidified and passed directly through the stacked resin columns (TEVA+TRU+SR-Resins) to separate the actinides and 90Sr from the NRIP urine samples more quickly. This improvement reduced sample preparation time for the NRIP 2007 emergency urine analyses significantly. This approach works well for small volume urine samples expected during an emergency response event. Based on initial feedback from NIST, the SRS Environmental Bioassay Lab had the most rapid analysis times for actinides and 90Sr analyses for NRIP 2007 emergency urine samples.
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Maxwell, S.L., Culligan, B.K. New column separation method for emergency urine samples. J Radioanal Nucl Chem 279, 105–111 (2009). https://doi.org/10.1007/s10967-007-7209-9
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DOI: https://doi.org/10.1007/s10967-007-7209-9