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Title: Separation of strontium from fecal matter

A method is presented of separating strontium from a sample of biomass potentially contaminated with various radionuclides. After the sample is reduced, dissociated, and carried on a first precipitate of actinides, the first precipitate is removed to leave a supernate. Next, oxalic acid is added to the supernate to cause a second precipitate of strontium and calcium. Then, after separating the second precipitate, nitric acid is added to the second precipitate to cause a third precipitate of strontium. The calcium remains in solution and is discarded to leave essentially the precipitate of strontium.
Inventors:
Issue Date:
OSTI Identifier:
6659658
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-95-030046
Patent Number(s):
US 5378631; A
Application Number:
PPN: US 8-195248
Contract Number:
AC07-84ID12435
Resource Relation:
Patent File Date: 14 Feb 1994
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; FECES; CONTAMINATION; SEPARATION PROCESSES; STRONTIUM; PRECIPITATION; ACTINIDES; ALKALINE EARTH METALS; BIOLOGICAL MATERIALS; BIOLOGICAL WASTES; ELEMENTS; MATERIALS; METALS; WASTES 400105* -- Separation Procedures; 560162 -- Radionuclide Effects, Kinetics, & Toxicology-- Animals, Plants, Microorganisms, & Cells

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