Analysis for impurities in helium using the helium ionization detector
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields

Dates
...

to

...
Document Data
Library
People
Clear All
...
Clear All

For additional assistance using the Custom Query please check out our Help Page

CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners. As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
i

Analysis for impurities in helium using the helium ionization detector



English

Details:

  • Personal Author:
  • Corporate Authors:
  • Description:
    "This Bureau of Mines report describes a chromatographic method for analyzing impurities in helium that utilizes a helium carrier gas containing 25 to 30 ppm Ne. An example of the effect of trace amounts of nitrogen, methane, and moisture on the detector's response is shown. The added neon in the carrier does away with irregularities of the analysis that were experienced when the carrier contained up to 3 ppm Ne. The addition of 25 to 30 ppm ne causes a loss of sensitivity, but the remaining sensitivity is adequate for routine analyses. The high-neon carrier allows positive and more linear responses for eight impurities: neon, hydrogen, argon, oxygen, nitrogen, methane, carbon dioxide, and ethane. Neon concentration levels of 0.02 to 125 ppm in helium carrier gases were studied. The high-neon carrier has been in successful routine use in Bureau of Mines helium facilities since October 1981." - NIOSHTIC-2

    NIOSH no. 10004440

  • Subjects:
  • Series:
  • Subseries:
  • Document Type:
  • Genre:
  • Pages in Document:
    ii, 30 numbered pages
  • NIOSHTIC Number:
    10004440
  • Resource Number:
    RI 8941
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:
    Filetype[PDF-2.15 MB]

You May Also Like

Checkout today's featured content at stacks.cdc.gov