Proof of Concept of High-Temperature Comprehensive
Two-Dimensional Gas Chromatography Time-of-Flight Mass Spectrometry
for Two-Dimensional Simulated Distillation of Crude Oils
posted on 2017-10-10, 00:00authored byMaximilian
K. Jennerwein, Markus S. Eschner, Thomas Wilharm, Ralf Zimmermann, Thomas M. Gröger
In
this work, a reversed-phase high-temperature comprehensive two-dimensional
gas chromatography time-of-flight mass spectrometry (GC × GC–TOFMS)
approach for the qualitative and quantitative analyses of crude oils
will be presented. The proposed setup provides the best utilization
of the two-dimensional separation space for carbon numbers between
C10 and C60. Visual Basic Script (VBS) was successfully
applied for data processing to achieve comprehensive classification
of the main compound classes. On this basis, crude oils from different
origins could be compared by their composition. Real distillation
cuts following ASTM D2892 and ASTM D5236 were applied for the development
of area-based templates representing virtual boiling point cuts. By
this approach, a quantification of an artificial crude oil sample
with a defined initial boiling point was evaluated versus the quantitative
result according to ASTM D7169 (one-dimensional simulated distillation
for high boiling samples, hereinafter 1D-SimDist), and by this, a
two-dimensional simulated distillation (2D-SimDist) was successfully
developed.