Determination of carbon disulfide in natural waters by adsorbent preconcentration and gas chromatography with flame photometric detection
Carbon disulfide (CS/sub 2/) in natural waters is determined at the picomolar level by a combination of preconcentration on Carbosieve G and gas chromatography with a flame photometric detector. The volatile carbon disulfide is stripped out of up to 1.8 L of sample by a nitrogen gas stream and preconcentrated on a Carbosieve adsorption tube. This tube is then attached to the gas chromatograph/flame photometric detector system and heated to desorb CS/sub 2/, which is collected in a liquid-nitrogen-cooled trap, released by heating the cold trap, separated on a Chromosil 330 column, and detected by a flame photometric detector. The CS/sub 2/ peak is recorded and integrated electronically. The detection limit is ca. 1 pmol L/sup -1/ CS/sub 2/. The analytical precision is 9%. Results of analyses of natural water samples are presented.
- Research Organization:
- Florida State Univ., Tallahassee
- OSTI ID:
- 6015516
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 59:22; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400102* -- Chemical & Spectral Procedures
400105 -- Separation Procedures
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ADSORPTION
CARBON COMPOUNDS
CARBON SULFIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
EXPERIMENTAL DATA
FLAME PHOTOMETRY
FRESH WATER
GAS CHROMATOGRAPHY
HYDROGEN COMPOUNDS
INFORMATION
NUMERICAL DATA
OXYGEN COMPOUNDS
PHOTOMETRY
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SORPTION
SULFIDES
SULFUR COMPOUNDS
TRACE AMOUNTS
WATER