Standard method of test for total hydrocarbons, methane, and carbon monoxide in the atmosphere (gas chromatographic method)

Journal Article · Wed Jan 01 04:00:00 EST 1975 · Annu. Book ASTM Stand.; (United States)

OSTI ID:7270828

A procedure is described that uses the specificity of the hydrogen flame ionization detector for hydrocarbons and gas chromatographic method for methane and carbon monoxide determination in the air. The hydrocarbon content is measured directly, and the sensitivity of the measurement is dependent upon the range of the instrument being used. A sample of air is admitted to a prechromatographic or stripper column for removal of the hydrocarbons prior to determination of methane and carbon monoxide. These are separated on a column. The methane is eluted first and passes unchanged through a catalytic reduction tube into the flame ionization detector. The carbon monoxide is reduced to methane in the catalytic reduction tube before being passed to the flame ionization detector. Nonmethane hydrocarbons are determined by subtraction of methane from total hydrocarbons. (BLM)

• OSTI ID: 7270828
• Journal Information: Annu. Book ASTM Stand.; (United States), Journal Name: Annu. Book ASTM Stand.; (United States) Vol. 26; ISSN ASTSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR
ALKANES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
CRYOGENIC FLUIDS
EMISSION SPECTROSCOPY
FLUIDS
GAS CHROMATOGRAPHY
GASES
HYDROCARBONS
METHANE
MONITORING
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SPECTROSCOPY
STANDARDS