Macrocyclic alkanes: A new class of biomarker
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A new class of cyclic hydrocarbon biomarker, macrocyclic-alkanes and their methylated analogues, have for the first time been unambiguously identified in a Botryococcus braunii rich sediment (torbanite).The compounds, consisting of a homologous series of macrocyclic-alkanes (ranging from C15 to C34) and their methylated derivatives (ranging from C17 to C26), were identified by using authentic standards and GC-MS techniques.
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Audino, Michiele; Grice, Kliti; Alexander, Robert; Kagi, Robert (2002)New classes of biomarkers, macrocyclic alkanes, have been previously identified in high grade oil shales (torbanites, Late Carboniferous-Late Permian) containing remains of the freshwater alga Botryococcus braunii (B. ...
Audino, Michiele; Grice, Kliti; Alexander, Robert; Kagi, Robert (2004)A molecular sieve method using NaX (13X) has been used to separate macrocyclic alkanes (in the carbon number range C14?C34), markers of the freshwater alga Botryococcus braunii, from the branched/cyclic hydrocarbon fractions ...
Distributions and stable carbon isotopic compositions of biomarkers in torbanites from different palaeogeographical locationsGrice, Kliti; Audino, Michiele; Alexander, Robert; Kagi, Robert (2001)The relative distributions and stable carbon isotopic compositions of certain aliphatic and aromatic biomarkers from 11 Botryococcus braunii rich torbanites from Scotland, South Africa and Australia covering the Late ...