Applications of laser micropyrolysis-gas chromatography-mass spectrometry

Paul F. Greenwood*, Simon C. George, Keith Hall

*Corresponding author for this work

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

An apparatus which couples a laser microprobe with a GC-MS has recently been constructed in our laboratories to facilitate analytical micropyrolysis studies. The utility and versatility of the technique is demonstrated through the analysis of micro-sized quantities of various organic fossils. Results are reported from a torbanite coal, Green River oil shale, Tasmanite oil shale, an isolated Tasmanites microfossil and oil-bearing fluid inclusions. A diverse range of aliphatic products including distributions of n-alkene/n-alkane pairs, isoprenoids, polycyclic biomarkers and various alkylaromatics have been detected from these materials. The analytical credibility of the laser micropyrolysis GC-MS technique is confirmed by the favourable comparison of the laser derived molecular data to corresponding data obtained from more traditional methods.

Original languageEnglish
Pages (from-to)1075-1089
Number of pages15
JournalOrganic Geochemistry
Volume29
Issue number5-7 -7 pt 2
DOIs
Publication statusPublished - Nov 1998
Externally publishedYes

Keywords

  • Analytical pyrolysis
  • Biomarkers
  • Fluid inclusion
  • Green River
  • Laser pyrolysis
  • Micropyrolysis
  • Tasmanite

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