Accession Number : AD0728665

Title :   Systems Analysis of Methods for Measuring Trace Dissolved Organic Matter in Seawater.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Diehl,George Francis , Jr

Report Date : JUN 1971

Pagination or Media Count : 96

Abstract : The many methods considered for measuring dissolved organic compounds in seawater have been systematically reduced to three systems that are potentially routine and rapid for shipboard work. These include quantitative gas chromatographic analysis of all amino acids and qualitative results for histidine, cystine, tryptophan, and arginine; gas chromatographic analysis of lipids including light hydrocarbons, fatty acids, and sterols, and; autoanalysis with tetrazoleum blue after charcoal adsorption for soluble sugar compounds like glucose, sucrose, and fructose. Pumping systems or glass samplers on a chemically inert hydrographic wire followed by pre-centrifugation and inverse multiple filtration in combination with a selected analytical scheme will provide a system for routine analysis of seawater. Synoptic data of these compounds can be compared with total organic carbon which is currently the only routine analysis for organics in seawater. (Author)

Descriptors :   (*SEA WATER, *CHEMICAL ANALYSIS), (*ORGANIC COMPOUNDS, SEA WATER), GAS CHROMATOGRAPHY, COLORIMETRIC ANALYSIS, LABORATORY EQUIPMENT, AMINO ACIDS, LIPIDS, HYDROCARBONS, FATTY ACIDS, CARBOHYDRATES, THESES

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE