An improved light hydrocarbon analysis system. Interim report

Technical Report · Tue May 11 00:00:00 EDT 1982

OSTI ID:6949020

Lamontagne, R A

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

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
CARBON MONOXIDE
CHEMICAL ANALYSIS
HYDROCARBONS
SEAWATER
AIR
CATALYTIC CRACKING
CONVERSION
ETHANE
FLAMES
GAS CHROMATOGRAPHY
HELIUM
IONIZATION CHAMBERS
METHANE
SAMPLING
VOLATILITY
ALKANES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMATOGRAPHY
CRACKING
DECOMPOSITION
ELEMENTS
FLUIDS
GASES
HYDROGEN COMPOUNDS
MEASURING INSTRUMENTS
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
RADIATION DETECTORS
RARE GASES
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
WATER
400102* - Chemical & Spectral Procedures
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)