Mass Spectrometric Determination of the Ratio of Branched to Normal Hydrocarbons up to C<sub>18</sub> in Fischer-Tropsch Product.

Sharkey, A.G.; Shultz, J.L.; Friedel, R. A.

doi:10.1021/ac60187a033

Cited by 7 publications

(3 citation statements)

References 20 publications

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“…Their concentrations increase at low carbon number because some of the volatile alkanes were distilled away when this sample was recovered by evaporating the solvents used in isolating the alkanes from other compounds in the FischerTropsch product. The systematic decrease in the > C13 alkanes show that the yields of alkanes decrease with carbon number in this abiotic fraction as UNDERWOOD (1940) and SHARKEY, SCHULTZ, and FRIEDEL (1962) have noted. Figure 5 shows the chromatogram of a benzene extract of the Orgueil meteorite.…”

Section: Carbon Number Of N-paraffinsmentioning

confidence: 73%

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Hydrocarbons in terrestrial samples and the Orgueil meteorite

Meinschein

1963

Space Sci Rev

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Meteorites contain extraterrestrial carbonaceous materials. The Alais, Orgueil, Tonk, and Ivuna meteorites resemble in their carbon, free sulfur, and non-metamorphosed mineral contents, densities, and general appearances certain organic-rich terrestrial sediments. Structural and isotopic determinations of carbon compounds in the Orgueil chondrite indicate that these compounds are primarily indigenous. Physically and chemically the benzene extractable carbonaceous materials from the Orgueil and certain near-surface terrestrial sediments are similar. Mass spectrometric type analyses of the alkanes from an Orgueil fragment, terrestrial sediments and organisms are statistically indistinguishable at the 95 per cent confidence level. Theoretical considerations and experimental data are presented, and these permit an assessment of the potential and reliability of hydrocarbons as biological indicators. Based on the production and preservation or organic substances in terrestrial environments, alkanes in the Alais, Orgueil, Tonk, and Ivuna (Type I) carbonaceous chondrites could retain the best evidence of organisms that may have lived on a parent body of meteorites.

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Section: Carbon Number Of N-paraffinsmentioning

confidence: 73%

“…Isotopic data obtained by SmVERMAN and EVSXErN (1958), PARK and EPSTEIN (1960), SILVERMAN (1960SILVERMAN ( , 1961, ECKEI, MAN (1961), and KLEIN (1957), and studies of isotope effects on reaction rates and products by YANKWICK and IKEDA (1959), MELANDER (1960), BATES andBEVINGTON (1963) have established that:…”

Section: Hydrocarbonsmentioning

confidence: 98%

Hydrocarbons in terrestrial samples and the Orgueil meteorite

Meinschein

1963

Space Sci Rev

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“…The studies of products formed upon irradiation of methane, or the reaction of carbon monoxide and hydrogen, FischerTropsch reaction products [261,262], or the investigation of the constituents of living organisms of geochemical significance, e.g., zooplankton [156,157], algae [131], bacteria [218], etc., are areas where the utilization of mass spectrometric techniques has been found of advantage.…”

Section: Application To the Analyses Of Extraterrestrial Materialsmentioning

confidence: 99%