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Bacterial biomarkers thermally released from dissolved organic matter

Organic Geochemistry

By:
, , , , and
DOI: 10.1016/j.orggeochem.2005.12.009

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Abstract

Hopane biomarker products were detected using microscale sealed vessel (MSSV) pyrolysis gas chromatography-mass spectrometry (GC-MS) analysis of dissolved organic matter from natural aquatic systems colonised by bacterial populations. MSSV pyrolysis can reduce the polyhydroxylated alkyl side chain of bacteriohopanepolyols, yielding saturated hopane products which are more amenable to GC-MS detection than their functionalised precursors. This example demonstrates how the thermal conditions of MSSV pyrolysis can reduce the biologically-inherited structural functionality of naturally occurring organic matter such that additional structural fragments can be detected using GC methods. This approach complements traditional analytical pyrolysis methods by providing additional speciation information useful for establishing the structures and source inputs of recent or extant organic material. ?? 2006.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Bacterial biomarkers thermally released from dissolved organic matter
Series title:
Organic Geochemistry
DOI:
10.1016/j.orggeochem.2005.12.009
Volume
37
Issue:
5
Year Published:
2006
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Organic Geochemistry
First page:
597
Last page:
609
Number of Pages:
13