A METHOD FOR THE DETERMINATION OF DISSOLVED ORGANIC CARBON IN SEA WATER BY GAS CHROMATOGRAPHY.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1965
- Accession Number
- AD0618932
Entities
People
- Alan D. Fredericks
- Donald W. Hood
Organizations
- Texas A&M University