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Method and apparatus for determining helium content of gas mixtures.

Authors
Emerson-DE; Kaplan-RL
Source
Anal Chem 1970 Dec; 42(14):1746-1748
NIOSHTIC No.
10010496
Abstract
A method and apparatus are described for determining the helium content of gaseous mixtures. The work was done so that the Bureau of Mines could more accurately and economically analyze helium- containing natural gases, crude helium purchased from private industries, and helium in gases used in research. Activated coconut charcoal is utilized at liquid nitrogen temperature to adsorb components other than helium in the mixture. A transducer is then used to determine the helium pressure. Twenty or more analyses with a standard deviation of +/- 0.04 percent can be made in an 8-hour day.
CODEN
ANCHAM
Publication Date
19701201
Document Type
OP; Journal Article
Fiscal Year
1971
NTIS Accession No.
NTIS Price
Identifying No.
OP 28-71
Issue of Publication
14
ISSN
0003-2700
NIOSH Division
HEFO
Source Name
Analytical Chemistry
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