Atmospheric pressure chemical ionization Fourier transform ion cyclotron resonance mass spectrometry for complex thiophenic mixture analysis
KAUST DepartmentAnalytical Chemistry Core Lab
Chemical Engineering Program
Clean Combustion Research Center
Combustion and Pyrolysis Chemistry (CPC) Group
Physical Science and Engineering (PSE) Division
Online Publication Date2013-10-01
Print Publication Date2013-11-15
Permanent link to this recordhttp://hdl.handle.net/10754/563030
MetadataShow full item record
AbstractRationale Polycyclic aromatic sulfur heterocycles (PASHs) are detrimental species for refining processes in petroleum industry. Current mass spectrometric Methods that determine their composition are often preceded by derivatization and dopant addition approaches. Different ionization Methods have different impact on the molecular assignment of complex PASHs. The analysis of such species under atmospheric pressure chemical ionization (APCI) is still considered limited due to uncontrolled ion generation with low- and high-mass PASHs. Methods The ionization behavior of a model mixture of five selected PASH standards was investigated using an APCI source with nitrogen as the reagent gas. A complex thiophenic fraction was separated from a vacuum gas oil (VGO) and injected using the same method. The samples were analyzed using Fourier transform ion cyclotron resonance mass spectrometry (FTICR MS). RESULTS PASH model analytes were successfully ionized and mainly [M + H]+ ions were produced. The same ionization pattern was observed for the real thiophenic sample. It was found that S1 class species were the major sulfur-containing species found in the VGO sample. These species indicated the presence of alkylated benzothiophenic (BT), dibenzothiophenic (DBT) and benzonaphthothiophenic (BNT) series that were detected by APCI-FTICR MS. CONCLUSIONS This study provides an established APCI-FTICR MS method for the analysis of complex PASHs. PASHs were detected without using any derivatization and without fragmentation. The method can be used for the analysis of S-containing crude oil samples. © 2013 John Wiley & Sons, Ltd.
SponsorsThe work at KAUST was funded by the Clean Combustion Research Center and by Saudi Aramco under the FUELCOM program.
- Petroleum crude oil analysis using low-temperature plasma mass spectrometry.
- Authors: Benassi M, Berisha A, Romão W, Babayev E, Römpp A, Spengler B
- Issue date: 2013 Apr 15
- Hyphenation of Thermal Analysis to Ultrahigh-Resolution Mass Spectrometry (Fourier Transform Ion Cyclotron Resonance Mass Spectrometry) Using Atmospheric Pressure Chemical Ionization For Studying Composition and Thermal Degradation of Complex Materials.
- Authors: Rüger CP, Miersch T, Schwemer T, Sklorz M, Zimmermann R
- Issue date: 2015 Jul 7
- Transmission geometry laser desorption atmospheric pressure photochemical ionization mass spectrometry for analysis of complex organic mixtures.
- Authors: Nyadong L, Mapolelo MM, Hendrickson CL, Rodgers RP, Marshall AG
- Issue date: 2014 Nov 18
- High molecular weight non-polar hydrocarbons as pure model substances and in motor oil samples can be ionized without fragmentation by atmospheric pressure chemical ionization mass spectrometry.
- Authors: Hourani N, Kuhnert N
- Issue date: 2012 Oct 15
- Atmospheric pressure laser ionization (APLI) coupled with Fourier transform ion cyclotron resonance mass spectrometry applied to petroleum samples analysis: comparison with electrospray ionization and atmospheric pressure photoionization methods.
- Authors: Panda SK, Brockmann KJ, Benter T, Schrader W
- Issue date: 2011 Aug 30