Analysis of crude oil and heavy fuel oil by HT-GCxGC-TOFMS · Analysis of Crude Oil and Heavy Fuel Oil by High Temperature Comprehensive Two-Dimensional Gas Chromatography Time-of-Flight

Contact: phone: +49 (0) 821 450 423-19 ASG Analytik Service Gesellschaft mbH

fax: +49 (0) 821 486 2519 Dr. Markus Eschner

e-mail: markus.eschner@asg-analytik.de 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