THE RADIOCHEMICAL DETERMINATION OF AMERICIUM IN THE PRESENCE OF PLUTONIUM IN URINE

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Americium is precipitated with bismuth phosphate from a nitric acid- digested urine sample. The bismuth phosphate is wet-ashed, dissolved in 6N--HCl, and the americium is precipitated with lamthanum fluoride. The lanthanum fluoride is metathesized to the hydroxide, and the precipitate is dissolved in 2N- nitric acid. Removal of concurrently metabolized plutonium is accomplished by liquid-liquid extraction of the nitric acid soiution with 0.1-M di(2- ethylhexyl)phosphoric acid (D2EIIPA) in chloroform. The purified americium is carried on lanthanum fluoride. The precipitate is slurried onto a stainless steel plamchet and counted in a low-background proportional alpha counter. The method is effective for quantitative ... continued below

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Pages: 18

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Bokowski, D.L. January 1, 1961.

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Description

Americium is precipitated with bismuth phosphate from a nitric acid- digested urine sample. The bismuth phosphate is wet-ashed, dissolved in 6N--HCl, and the americium is precipitated with lamthanum fluoride. The lanthanum fluoride is metathesized to the hydroxide, and the precipitate is dissolved in 2N- nitric acid. Removal of concurrently metabolized plutonium is accomplished by liquid-liquid extraction of the nitric acid soiution with 0.1-M di(2- ethylhexyl)phosphoric acid (D2EIIPA) in chloroform. The purified americium is carried on lanthanum fluoride. The precipitate is slurried onto a stainless steel plamchet and counted in a low-background proportional alpha counter. The method is effective for quantitative separation from plutonium and uranium. Quantities of the order of 0.5 dpm of americium cam be detected in a urine sample. (auth)

Physical Description

Pages: 18

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  • Other Information: Orig. Receipt Date: 31-DEC-63

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  • Report No.: RFP-279
  • Grant Number: AT(29-1)-1106
  • DOI: 10.2172/4763837 | External Link
  • Office of Scientific & Technical Information Report Number: 4763837
  • Archival Resource Key: ark:/67531/metadc1034570

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 1961

Added to The UNT Digital Library

  • Oct. 18, 2017, 7:39 a.m.

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  • Oct. 25, 2017, 4:23 p.m.

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Bokowski, D.L. THE RADIOCHEMICAL DETERMINATION OF AMERICIUM IN THE PRESENCE OF PLUTONIUM IN URINE, report, January 1, 1961; United States. (digital.library.unt.edu/ark:/67531/metadc1034570/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.