Determination of sulfur-containing gases by a deactivated cryogenic enrichment and capillary gas chromatographic system
- Univ. of Idaho, Moscow
A deactivated glass capillary, wall-coated open tubular (WCOT) column is the heart of a novel gas chromatographic procedure for measuring reduced sulfur-containing gases in air samples. These deactivated, high resolution WCOT columns provide optimal chromatographic separation of compounds such as H/sub 2/S, COS, CH/sub 3/SH, CH/sub 3/SCH/sub 3/, CS/sub 2/, CH/sub 3/SSCH/sub 3/, and other organosulfur species. In addition, the combination of WCOT columns, a deactivated GC, and the flame photometric detector (FPD) increases the sensitivity of the GC/FPD method for sulfur compounds. The GC/WCOT/FPD instrumentation is also designed for complete compatibility with a cryogenic sampling procedure. This surface-deactivated, cryogenic enrichment system has been shown to provide known sampling efficiencies between 40% to approximately 100% for the important inorganic and organosulfur compounds at the low and sub-ppB concentrations. The methodology described has been successfully applied to field analyses of sulfur compound emissions from biogenic sources.
- OSTI ID:
- 6318783
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 51:6; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400102* -- Chemical & Spectral Procedures
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR
CHEMICAL ANALYSIS
CHROMATOGRAPHY
CRYOGENICS
ELEMENTS
FLUIDS
GAS CHROMATOGRAPHY
GASES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHOTOMETRY
QUANTITATIVE CHEMICAL ANALYSIS
SAMPLING
SEPARATION PROCESSES
SULFUR