Solubility testing of actinides on breathing-zone and area air samples

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Description

A solubility testing method for several common actinides has been developed with sufficient sensitivity to allow profiles to be determined from routine breathing zone and area air samples in the workplace. Air samples are covered with a clean filter to form a filter-sample-filter sandwich which is immersed in an extracellular lung serum simulant solution. The sample is moved to a fresh beaker of the lung fluid simulant each day for one week, and then weekly until the end of the 28 day test period. The soak solutions are wet ashed with nitric acid and hydrogen peroxide to destroy the organic ... continued below

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46 p.

Creation Information

Metzger, R.L.; Jessop, B.H. & McDowell, B.L. February 1, 1996.

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Description

A solubility testing method for several common actinides has been developed with sufficient sensitivity to allow profiles to be determined from routine breathing zone and area air samples in the workplace. Air samples are covered with a clean filter to form a filter-sample-filter sandwich which is immersed in an extracellular lung serum simulant solution. The sample is moved to a fresh beaker of the lung fluid simulant each day for one week, and then weekly until the end of the 28 day test period. The soak solutions are wet ashed with nitric acid and hydrogen peroxide to destroy the organic components of the lung simulant solution prior to extraction of the nuclides of interest directly into an extractive scintillator for subsequent counting on a Photon-Electron Rejecting Alpha Liquid Scintillation (PERALS{reg_sign}) spectrometer. Solvent extraction methods utilizing the extractive scintillators have been developed for the isotopes of uranium, plutonium, and curium. The procedures normally produce an isotopic recovery greater than 95% and have been used to develop solubility profiles from air samples with 40 pCi or less of U{sub 3}O{sub 8}. Profiles developed for U{sub 3}O{sub 8} samples show good agreement with in vitro and in vivo tests performed by other investigators on samples from the same uranium mills.

Physical Description

46 p.

Notes

INIS; OSTI as TI96006890

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  • Other Information: PBD: Feb 1996

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  • Other: TI96006890
  • Report No.: NUREG/CR--6419
  • Report No.: RSE--9501
  • DOI: 10.2172/205121 | External Link
  • Office of Scientific & Technical Information Report Number: 205121
  • Archival Resource Key: ark:/67531/metadc672929

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Creation Date

  • February 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • April 22, 2016, 6:17 p.m.

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Metzger, R.L.; Jessop, B.H. & McDowell, B.L. Solubility testing of actinides on breathing-zone and area air samples, report, February 1, 1996; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc672929/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.