Gas chromatographic determination of volatile sulfides at trace levels in natural fresh waters

Journal Article · Sun Jan 15 04:00:00 EST 1989 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00177a007· OSTI ID:6190795

Caron, F; Kramer, J R

Volatile sulfides in the aqueous phase were analyzed by degassing the solution and cryogenically trapping the volatiles. A gas chromatograph equipped with a Hall electrolytic conductivity detector is used in the sulfur mode. Water samples were analyzed with the internal standard method because of variable recoveries. Recovery efficiencies of the internal standard show a good linear relationship with the analytes. Detection limits (as S) of 0.03 ng/L for H/sub 2/S, 0.02 ng/L for COS, 0.06 ng/L for CH/sub 3/SH, 0.09 ng/L for CS/sub 2/, 0.05 ng/L for CH/sub 3/SCH/sub 3/, 0.07 ng/L for CH/sub 3/CH/sub 2/CH/sub 2/SH, and 0.10 ng/L for CH/sub 3/SSCH/sub 3/ can be achieved for a 100-mL sample. The precision is better than 10% for the range of 1-4000 ng of S/L.

• Research Organization: McMaster Univ., Hamilton, Ontario (Canada)
• OSTI ID: 6190795
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 61:2; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
CHALCOGENIDES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
CRYOGENICS
DATA
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
HYDROGEN COMPOUNDS
INFORMATION
MATTER
NUMERICAL DATA
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SULFIDES
SULFUR COMPOUNDS
TRACE AMOUNTS
VOLATILE MATTER
WATER