Application of Comprehensive 2D GC-MS and APPI FT-ICR MS for More Complete Understanding of Chemicals in Diesel Fuel

Yun-Ju Cho,Sung-Hwan Kim,Annana Islam,Arif Ahmed

doi:10.5478/msl.2012.3.2.43

Abstract

In this study, comprehensive two dimension gas chromatography (2D GC-MS) and 15 T Fourier transform ion cyclo- tron resonance mass spectrometry (15T FT-ICR MS) connected to atmospheric pressure photo ionization (APPI) have been combined to obtain detailed chemical composition of a diesel oil sample. With 2D GC-MS, compounds with aliphatic alkyl, sat- urated cyclic ring(s), and one aromatic ring structures were mainly identified. Sensitivity toward aromatic compounds with more than two aromatic rings was low with 2D GC-MS. In contrast, aromatic compounds containing up to four benzene rings were identified by APPI FT-ICR MS. Relatively smaller abundance of cyclic ring compounds were found but no aliphatic alkyl com- pounds were observed by APPI FT-ICR MS. The data presented in this study clearly shows that 2D GC-MS and 15T FT-ICR MS provides different aspect of an oil sample and hence they have to be considered as complementary techniques to each other for more complete understanding of oil samples.

Highlights

Crude oil is one of the most important energy sources in the world and there have been many studies devoted to understand chemical composition of crude oil
The data presented in this study clearly shows that 2D gas chromatography mass spectrometry (GC-MS) and 15T FT-ICR MS provides different aspect of an oil sample and they have to be considered as complementary techniques to each other for more complete understanding of oil samples
With 2D GCMS, two columns with different polarities can be used at the same time so that it can provide more separation capability than conventional GC-MS.12 2D GC-MS has been successfully applied to study oil samples.[13−17] FT-ICR MS is a very powerful technique for complex mixture for its unparalleled ultra-high resolution capability.[18]

Summary

Introduction

Crude oil is one of the most important energy sources in the world and there have been many studies devoted to understand chemical composition of crude oil. Abstract: In this study, comprehensive two dimension gas chromatography (2D GC-MS) and 15 T Fourier transform ion cyclotron resonance mass spectrometry (15T FT-ICR MS) connected to atmospheric pressure photo ionization (APPI) have been combined to obtain detailed chemical composition of a diesel oil sample. With 2D GC-MS, compounds with aliphatic alkyl, saturated cyclic ring(s), and one aromatic ring structures were mainly identified.

Results

Conclusion