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Exploration of High-Temperature Petroleum Analysis Using Comprehensive Two=Dimensional Gas Chromatography and Time-of-Flight Mass Spectrometry
EP25636
Poster Title: Exploration of High-Temperature Petroleum Analysis Using Comprehensive Two=Dimensional Gas Chromatography and Time-of-Flight Mass Spectrometry
Submitted on 20 Mar 2017
Author(s): Christina Kelly, Joseph Binkley, Lorne Fell, David Alonso
Affiliations: LECO Corporation
This poster was presented at Pittcon 2017
Poster Views: 755
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Poster Information
Abstract: The shift toward increasing use of heavy crude oils in the petroleum industry makes it necessary for the capabilities of instrumental analysis to follow suit. Determination of the range of hydrocarbons that can be examined is crucial for advanced techniques like two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GCxGC-TOFMS). The ability of the thermal modulator to provide crucial focusing and reinjection on to the second dimension of separation, which significantly increases the chromatographic space and peak capacity of the system, is evaluated using n-alkane and Polywax standards to test the upper limits of high-temperature analysis.Summary: The LECO Dual Stage Quad Jet Thermal modulator is capable of trapping and refocusing n-alkanes up to at least C86, with limitations set by the maximum column temperature of 400°C. Because performance was consistent with both early and late-eluting compounds, with proportionally thin second-dimension peaks seen for both, GCxGC-TOFMS proves to be a system suitable for high-temperature petroleum analysis for C84 and beyond.Report abuse »
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