Mass-spectrometer method for determining helium in the parts-per-million to 10-percent range. Rept. of Investigations/1991

Technical Report · Tue Jan 01 00:00:00 EST 1991

OSTI ID:5237444

Holland, P W

The U.S. Bureau of Mines has developed a mass spectrometer method for determining helium in the parts-per-million to 10-pct range to an accuracy of + or {minus} 1 pct. The method employs a mass spectrometer, an inlet system utilizing a chromatographic gas-sampling valve, and an activated coconut charcoal trap cooled with liquid nitrogen. Gravimetrically prepared standards of helium in nitrogen were used to demonstrate the linearity of the method over the concentration range of 10 ppm to 10.66 pct helium.

• Research Organization: Bureau of Mines, Amarillo, TX (United States). Helium Field Operations
• OSTI ID: 5237444
• Report Number(s): PB-91-225110/XAB; BUMINES-RI-9359
• Resource Relation: Other Information: See also PB-252 474. Library of Congress catalog card no. 90-27339
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HELIUM
MASS SPECTROSCOPY
ACCURACY
CHEMICAL ANALYSIS
GAS ANALYSIS
HELIUM 4
HELIUM ISOTOPES
MASS SPECTROMETERS
NITROGEN
NUMERICAL ANALYSIS
STANDARDS
US BUREAU OF MINES
ELEMENTS
EVEN-EVEN NUCLEI
FLUIDS
GASES
ISOTOPES
LIGHT NUCLEI
MATHEMATICS
MEASURING INSTRUMENTS
NATIONAL ORGANIZATIONS
NONMETALS
NUCLEI
RARE GASES
SPECTROMETERS
SPECTROSCOPY
STABLE ISOTOPES
US DOI
US ORGANIZATIONS
400102* - Chemical & Spectral Procedures