analysis of crude oil and heavy fuel oil by ht-gcxgc-tofms · analysis of crude oil and heavy fuel...
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Contact: phone: +49 (0) 821 450 423-19 ASG Analytik Service Gesellschaft mbH
fax: +49 (0) 821 486 2519 Dr. Markus Eschner
e-mail: [email protected] Trentiner Ring 30 • 86356 Neusaess • Germany
Info letter Nᴼ 02/2014
Analysis of Crude Oil and Heavy Fuel Oil by High Temperature
Comprehensive Two-Dimensional Gas Chromatography
Time-of-Flight Mass Spectrometry (HT-GC×GC-TOFMS)
Figure 1 depicts a 2D contour plot of a heavy fuel oil sample analyzed by the LECO Pegasus 4D
GC×GC-TOFMS consumable free instrument. The sample can be subdiveded into several main
groups by using classification in combination with Visual Basic scripting toolbox, both being
integrated in the ChromaTOF software package. The magnified section of the alkane region
around n-eicosane exhibits the explored fine structure of the particular iso- and n-alkanes
enabling to determine of their ratio. A semiquantification can also be performed and Figure 2
exhibits a pie chart with the percentage distribution of the assigned chemical classes.
Figure 1: 2D contour plot of a heavy fuel oil exhibiting several chemical classes being explored by GC×GC-TOFMS
Features of HT-GC×GC-TOFMS analysis
D developed by ASG:
- sample investigation up to n-C60 possible
- detailed information about chemical
composition of high boiling samples
- determination of n-/iso-alkane ratio
- several other parameters and customized
analyses on request
- prizes on request
11.25%
11.46%
15.06%
13.20%
29.05%11.03%
6.00%
1.02%
1.93%
n-Alkanes iso-Alkanes Cycloalkanes
Monoaromatics Diaromatics Triaromatics
Tetraaromatics Polyaromatics Heteroaromatics
Figure 2: Pie chart with percentage distribution of assigned
chemical classes of a heavy fuel sample