The effect of hydrosulphurization on stable carbon isotopic compositions of free and sulphur-bound lipids
| Autor: | Stefan Schouten, Math E.L. Kohnen, Jan W. de Leeuw, Jaap S. Sinninghe Damsté |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
inorganic chemicals
chemistry.chemical_classification digestive oral and skin physiology Inorganic chemistry Substrate (chemistry) chemistry.chemical_element Fractionation Sulfur respiratory tract diseases chemistry Geochemistry and Petrology Isotopes of carbon Kinetic isotope effect Organic matter Carbon Isotope analysis |
| Zdroj: | Geochimica et Cosmochimica Acta. 59:1605-1609 |
| ISSN: | 0016-7037 |
| DOI: | 10.1016/0016-7037(95)00066-9 |
| Popis: | 1-Decene was subjected to hydrosulphurization under phase-transfer conditions at room temperature. Compound-specific isotope analysis revealed that 1-decene becomes enriched in 13C with increasing yields of sulphurization whilst the sulphur compounds formed are initially depleted in 13C compared to the starting substrate. The average carbon isotopic fractionation effect of the reaction on the two carbon atoms involved is ca. −20%o. Sedimentary sulphur compounds, however, do not show this fractionation effect indicating that either a different sulphurization reaction with different isotope effects has occurred or that functionalized lipids may have been fully sulphurized. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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