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Characterization of molecular biomarkers in peat samples by GC-MS

AuthorsGómez Borrego, Ángeles ; Blanco, C. G.; López Días, Veneranda ; Arboleya Vega, María ; López Sáez, José Antonio ; López Merino, Lourdes
Issue DateOct-2009
PublisherUniversidad del País Vasco
CitationIX Reunión Científica de la Sociedad Española de Cromatografía y Técnicas Afines. XXXVIII-GCTA (IX SECYTA 2009)
AbstractThe biomarker composition of peats in North Spain has been studied by gas chromatography and gas chromatography/mass spectrometry. We have identified n-alkanes and n-alkan-2-ones. The former compounds are more abundant in high boiling point regions with a strong odd over even preference. The second group also has a strong odd over even preference, the most abundant being the C27 n-alkan-2-one. These related compounds point to a predominant terrestrial input. Substantial amounts of hopanoids are also present in the sample. Two of the most abundant are the hop-22(29)-ene and hopenone isomers. Hopanoids are mainly derived from bacterial membrane lipids, through diagenetic processes involving biohopanoids (Innes et al., 1997). This study was carried out in order to obtain information about climatic changes 4000 years ago in the north of Spain.
DescriptionPoster presentado en la IX Reunión Científica de la Sociedad Española de Cromatografía y Técnicas Afines celebrada en San Sebastián (España) del 28 al 30 de octubre de 2009
Appears in Collections:(INCAR) Comunicaciones congresos
(CCHS-IH) Comunicaciones congresos
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