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Method Optimization for Comprehensive Characterization of Petroleum with High Resolution Time-of-Flight Mass Spectrometry Platforms
EP22985
Poster Title: Method Optimization for Comprehensive Characterization of Petroleum with High Resolution Time-of-Flight Mass Spectrometry Platforms
Submitted on 13 May 2015
Author(s): Clecio F. Klitzke, David Alonso, Kevin Siek, Elizabeth Humston-Fulmer, Joe Binkley, Jeff Patrick
Affiliations: LECO Corporation
This poster was presented at Pittcon 2014
Poster Views: 1,635
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Poster Information
Abstract: Petroleum is the most complex matrix in nature, constituted by many thousands of compounds. As such, petroleum analysis presents an analytical challenge, and for mass spectrometric analysis we need equipment with high resolving power and high mass accuracy. The matrix complexity and characterization needs demand analytical solutions that will identify individual components (micro-) while also providing differential information on contributions from key functional group contributions (macro-characterization). Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS) is the gold standard for comprehensive analysis of crude oil and petroleomic studies and offers both analytical capabilities mentioned. An alternative to FT-ICR MS is time-of-flight mass spectrometry (TOFMS), which offers continuous full range non-skewed mass spectral information and fast acquisition rates ideal for analyte identification of complex mixtures. TOFMS also offers the significant advantage of being readily interfaced to GC and providing acquisition rates compatible with GC. Advances in the resolution of TOFMS provide an alternative for most routine petroleomic MS studies using ESI, APCI, EI, and CI.Summary: These results show the utility of high resolution time-of-flight mass spectrometry with high mass accuracy for comprehensive petroleomic studies. GC-HRT MS is especially useful for adding structural information in the analysis of complex samples like crude oil.Report abuse »
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