Separation of strontium from fecal matter

Title: Separation of strontium from fecal matter

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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:: Kester, D.K.

Issue Date:: 1995-01-03

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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Separation of strontium from fecal matter

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The present invention relates to a method of separating strontium, and, more particularly, to a method of separating strontium from a sample of biomass potentially contaminated with various radionuclides. Radioactive strontium is a radionuclide which represents a hazard to man because of its long half-life and, if ingested, its tendency to be retained in the human body. In the event that radionuclides such as strontium or various actinides are ingested, it is desirable to monitor the discharge or release of these radionuclides from the human body through analysis of fecal matter. In laboratories and other facilities where potential for radionuclidemore »« less
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