Accession Number : AD0618932

Title :   A METHOD FOR THE DETERMINATION OF DISSOLVED ORGANIC CARBON IN SEA WATER BY GAS CHROMATOGRAPHY.

Descriptive Note : Technical rept.,

Corporate Author : TEXAS A AND M UNIV COLLEGE STATION DEPT OF OCEANOGRAPHY AND METEOROLOGY

Personal Author(s) : Fredericks,Alan D. ; Hood,Donald W.

Report Date : JUL 1965

Pagination or Media Count : 107

Abstract : A procedure was developed for the determination of dissolved organic carbon in sea water in concentrations greater than 0.2 mg/1. Wet oxidation of the organic carbon was carried out in sealed glass ampoules with peroxydisulfuric acid. A filtered, five-milliliter sample was acidified and purged with purified oxygen to remove inorganic carbonate components. The glass ampoule was then sealed immediately with a specially fabricated oxyacetylene microburner. The oxidation of organic matter was carried out at elevated temperature and pressure after collection of a large number of samples. The resulting carbon dioxide was flushed through a gas chromatograph with helium as the carrier gas and the signal was recorded on a strip chart recorder. Chromatographic analysis time was approximately eleven minutes per sample with a precision of = 0.1 mg C/1. The organic carbon content of the sample was determined by measurement of the peak area using an appropriate carbon dioxide calibration curve. (Author)

Descriptors :   (*CHROMATOGRAPHIC ANALYSIS, SEA WATER), (*SEA WATER, CARBON COMPOUNDS), (*CARBON COMPOUNDS, SEA WATER), ORGANIC COMPOUNDS, OXIDATION, GLASS, CONTAINERS, ACIDS, CHEMICAL ANALYSIS, OCEANOGRAPHY

Distribution Statement : APPROVED FOR PUBLIC RELEASE