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

Journal Article · Wed Jan 01 00:00:00 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), Vol. 26; Other Information: ASTM-D--3416-75T
• Country of Publication: United States
• Language: English

Related Subjects

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