An improved light hydrocarbon analysis system. Interim report
Technical Report
·
OSTI ID:6949020
A system for extracting and measuring ambient levels of C1-C4 hydrocarbons and carbon monoxide (CO) in seawater is described. The analytical instrument is a gas chromatograph with flame ionization detectors that incorporates a catalytic conversion of CO to CH4 (methane). The samples are concentrated prior to introduction to the chromatographic system. The volatile hydrocarbons are extracted from the seawater by the use of a helium flow stream and concentrated on dry ice-acetone cold traps. Air samples can be processed in a similar way.
- Research Organization:
- Naval Research Lab., Washington, DC (USA)
- OSTI ID:
- 6949020
- Report Number(s):
- AD-A-114575/4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR
ALKANES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYTIC CRACKING
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMATOGRAPHY
CONVERSION
CRACKING
DECOMPOSITION
ELEMENTS
ETHANE
FLAMES
FLUIDS
GAS CHROMATOGRAPHY
GASES
HELIUM
HYDROCARBONS
HYDROGEN COMPOUNDS
IONIZATION CHAMBERS
MEASURING INSTRUMENTS
METHANE
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
RADIATION DETECTORS
RARE GASES
SAMPLING
SEAWATER
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
VOLATILITY
WATER
400102* -- Chemical & Spectral Procedures
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR
ALKANES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYTIC CRACKING
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMATOGRAPHY
CONVERSION
CRACKING
DECOMPOSITION
ELEMENTS
ETHANE
FLAMES
FLUIDS
GAS CHROMATOGRAPHY
GASES
HELIUM
HYDROCARBONS
HYDROGEN COMPOUNDS
IONIZATION CHAMBERS
MEASURING INSTRUMENTS
METHANE
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
RADIATION DETECTORS
RARE GASES
SAMPLING
SEAWATER
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
VOLATILITY
WATER