Journal
ENVIRONMENTAL FORENSICS
Volume 19, Issue 1, Pages 14-26Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/15275922.2017.1408163
Keywords
Environmental forensics; oil spills; alkanes; polycyclic aromatic hydrocarbons
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A Pyrolysis - Gas Chromatography - Mass Spectrometry (Py-GC-MS) method was developed for the analysis and profiling of crude and heavy fuel oil asphaltenes, for application in oil fingerprinting. Asphaltenes were precipitated from ten geographically different oils using n-pentane, and analysed by Py-GC-MS. Alkane profiles and sulphur/aromatic profiles were used to compare the oils, and to correctly differentiate oils from different geographical regions. Py-GC-MS could not differentiate a weathered oil sample and a fresh oil sample from the same source. The results of this study support the findings from a previously developed FTIR method for asphaltene profiling.
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