Document Detail


Sulfur isotope effects associated with oxidation of sulfide by O2 in aqueous solution.
MedLine Citation:
PMID:  11538336     Owner:  NASA     Status:  MEDLINE    
Abstract/OtherAbstract:
Normal sulfur isotope effects averaging epsilon = -5.2 +/- 1.4% (s.d.) were consistently observed for the oxidation of sulfide in aqueous solution. Reaction products were sulfate, thiosulfate and sulfite at pH 10.8-11 in distilled water; S0 was formed in two experiments with synthetic seawater at pH 8-9.5. Because the -5.2% normal isotope effect differs significantly from the previously measured +2% inverse effect associated with anaerobic oxidation of sulfide by photosynthetic bacteria, stable sulfur isotopic measurements are potentially useful for distinguishing aerobic vs. anaerobic sulfide oxidation in marine and freshwater sulfureta.
Authors:
B Fry; W Ruf; H Gest; J M Hayes
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Isotope geoscience     Volume:  73     ISSN:  0167-6695     ISO Abbreviation:  Isot Geosci     Publication Date:  1988  
Date Detail:
Created Date:  1996-03-25     Completed Date:  1996-03-25     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  100972029     Medline TA:  Isot Geosci     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  205-10     Citation Subset:  S    
Affiliation:
Department of Chemistry, Indiana University, Bloomington 47405, USA.
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MeSH Terms
Descriptor/Qualifier:
Bacteria, Anaerobic / metabolism
Oxidation-Reduction
Oxygen / metabolism*
Seawater / chemistry
Sulfates / analysis,  metabolism
Sulfides / chemistry*,  metabolism*
Sulfites / analysis,  metabolism
Sulfur / metabolism*
Sulfur Isotopes
Thiosulfates / analysis,  metabolism
Grant Support
ID/Acronym/Agency:
PCM 84-04996/PC/NCI NIH HHS; PCM-79-10747/PC/NCI NIH HHS
Chemical
Reg. No./Substance:
0/Sulfates; 0/Sulfides; 0/Sulfites; 0/Sulfur Isotopes; 0/Thiosulfates; 7704-34-9/Sulfur; 7782-44-7/Oxygen
Investigator
Investigator/Affiliation:
J M Hayes / IN U, Bloomington, Dept Chem/Geol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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