A Method for Determining Helium in Water

Details

• Personal Author:
  Holland, Philip W.
• Description:
  The Bureau of Mines has developed a method for determining helium in water for use in sampling and analyzing surface and subsurface waters for geochemical survey work. The accuracy of the analytical method is within +/- 10 percent for samples containing above 20 x 10- 8 cm3 he (stp)/cm3 h20. The minimum detectable helium-in-water concentration is calculated to be 2 x 10-8 cm3 he (stp)/cm3 water. Water samples are collected in 500-cm3 stainless steel cylinders. The dissolved gases are extracted into a cylinder of equal volume containing a known quantity of neon. The resulting gas mixture is subsequently analyzed for helium and neon-21 by mass spectrometry. The volume of helium in the sample is calculated from the mass spectrometric determination of the helium-to-neon-21 ratio, the known quantity of neon used, and the extraction efficiency of helium. [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:
  HEFO - Helium Field Office
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-17
• NIOSHTIC Number:
  nn:10006747
• Federal Fiscal Year:
  1981
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:64ef7d6880dfee70c211cac75defe91ec0ecedf59e24f30634f454353dc61194b90053be9d649c4763888ef489a266aef4f757dccc513a3e93eaa61fc61caca1
• Download URL:
  https://stacks.cdc.gov/view/cdc/237771/cdc_237771_DS1.pdf
• File Type:
  [PDF - 1.27 MB ]