Separation of strontium from fecal matter

Details Separation of strontium from fecal matter Separation of strontium from fecal matter

1994-02-14

1995-01-03

Redding, David A.

Chemistry: analytical and immunological testing

Including use of radioactive properties

Including pyrolysis of radioactive material

436 79, 436155, 436175, G01N 3348, G01N 3350

Patent

active

053786319

ABSTRACT:
A method 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.

REFERENCES:
patent: 5190881 (1993-03-01), McKibbin
Martin, D. B. "Determination of Strontium-89 and -90 in Soil with Total Sample Decomposition", Analytical Chemistry, vol. 51, No. 12, pp. 1968-1972, 1979.

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