Accession Number : ADA114575

Title :   An Improved Light Hydrocarbon Analysis System.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s) : Lamontagne,R A

PDF Url : ADA114575

Report Date : 11 May 1982

Pagination or Media Count : 10

Abstract : 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. (Author)

Descriptors :   *Gas chromatography, *Hydrocarbons, *Analytical chemistry, *Sampling, *Sea water, Flames, Ionization, Detectors, Catalytic cracking, Conversion, Flow, Helium, Volatility, Ethanes, Air, Methane

Subject Categories : Organic Chemistry
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE