Spectrophotometric Determination of Uranium Using Dibenzoylmethane

Details

• Personal Author:
  Jones, Miriam M. ; MacDuff JS ; Whitehead, Alton B.
• Description:
  A procedure for the spectrophotometric determination of uranium has been developed in support of minerals research being conducted by the Bureau of Mines. Uranium is separated from the sample by tributylphosphate extraction from acid solution containing added aluminum nitrate and (ethylene dinitrilo)-tetraacetic acid solutions. The colored uranium-dibenzoylmethane complex is developed in the organic phase by adding an ethanol solution of dibenzoylmethane buffered with triethanolamine. Absorbance is measured at 410 nanometers, and the response is linear up to at least 100 micrograms u3o8 in the aqueous aliquot taken for analysis. Aliquots containing as little as 8 micrograms u3o8 may be analyzed with relative errors no greater than +/-5 percent. For aliquots containing at least 35 micrograms u3o8, relative standard deviation at the 95-percent confidence level is about +/-2.2 percent. Appropriate procedures are given for analyzing a wide variety of samples. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Conference Publications ; Case Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SLRC - Salt Lake City Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-12
• NIOSHTIC Number:
  nn:10006862
• Federal Fiscal Year:
  1980
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:5425fa2b413c288856b6625dc02c31efe559bef1b55cee5229c8d3ba7b86bc958fdbbb77f358ae732bfcc86a9d8ee953a44fc0519276669878174e1d5177cbf3
• Download URL:
  https://stacks.cdc.gov/view/cdc/237824/cdc_237824_DS1.pdf
• File Type:
  [PDF - 4.83 MB ]