Targeted Petroleomics: Analytical Investigation of Macondo Well Oil Oxidation Products from Pensacola Beach
| Autor: | Brian M. Ruddy, Benjamin J. Bythell, Christopher M. Reddy, Christoph Aeppli, Ryan P. Rodgers, Amy M. McKenna, Vladislav V. Lobodin, Markus Huettel, Robert K. Nelson, Joel E. Kostka, Alan G. Marshall |
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| Rok vydání: | 2014 |
| Předmět: |
Molecular complexity
biology Chemistry General Chemical Engineering Energy Engineering and Power Technology Petroleomics Sediment Fraction (chemistry) biology.organism_classification Fourier transform ion cyclotron resonance Fuel Technology Environmental chemistry Oil oxidation Gas chromatography human activities Pensacola |
| Zdroj: | Energy & Fuels. 28:4043-4050 |
| ISSN: | 1520-5029 0887-0624 |
| Popis: | Of the estimated 5 million barrels of crude oil released into the Gulf of Mexico from the Deepwater Horizon oil spill, a fraction washed ashore onto sandy beaches from Louisiana to the Florida panhandle. Here, we compare the detailed molecular analysis of hydrocarbons in oiled sands from Pensacola Beach to the Macondo wellhead oil (MWO) by electrospray (ESI) and atmospheric pressure photoionization (APPI) Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) to identify major environmental transformation products of polar, high molecular weight (C>25) “heavy ends” (high-boiling species) inaccessible by gas chromatography. The petrogenic material isolated from the Pensacola Beach sand displays greater than 2-fold higher molecular complexity than the MWO constituents, most notably in oxygenated species absent in the parent MWO. Surprisingly, the diverse oxygenated hydrocarbons in the Pensacola Beach sediment extracts were dominant in all ionization modes investigated, (±) ESI and (±) APPI.... |
| Databáze: | OpenAIRE |
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