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Characterization of crude oil and its saturate, aromatic and resin fractions by high-field asymmetric waveform ion mobility spectrometry – high resolution mass spectrometry

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journal contribution
posted on 23.10.2018 by Katarzyna Szykula, Christianne Wicking, Samuel Whitmarsh, Colin Creaser, Jim Reynolds
High-field asymmetric waveform ion mobility spectrometry (FAIMS) was coupled to a high-resolution Orbitrap mass spectrometer (MS) with a heated electrospray ionization (HESI) source for the analysis of crude oil and respective saturate, aromatic, and resin fractions. Four classes of compounds N1, N1S1, O1S1, and O2S1 were investigated using FAIMS one-dimensional compensation field scans from −3 to 5 Td for the crude oil and FAIMS static scans from 0.5 to 2.5 Td with 0.5 Td increments for fractions. In all cases, the incorporation of FAIMS into the analysis resulted in an increased number of detected peaks for both the crude oil and fractions. The most significant change was noticed in the aromatic fraction, with an increase of 218% for N1 and up to 514% for the O2S1 class of compounds observed. In addition, pre-analytical fractionation combined with FAIMS–MS enabled a higher number of molecular features to be observed in comparison to whole oil for three classes of compounds N1, O1S1, and O2S1 by 19, 45, and 83%, respectively.

Funding

The authors thank Owlstone, Ltd. for the financial and technical support.

History

School

  • Science

Department

  • Chemistry

Published in

Energy and Fuels

Volume

32

Issue

11

Pages

11310-11316

Citation

SZYKULA, K.M. ... et al, 2018. Characterization of crude oil and its saturate, aromatic and resin fractions by high-field asymmetric waveform ion mobility spectrometry – high resolution mass spectrometry. Energy and Fuels, 32 (11), pp.11310-11316.

Publisher

© American Chemical Society

Version

AM (Accepted Manuscript)

Publisher statement

This paper was accepted for publication in the journal Energy and Fuels and the definitive published version is available at https://doi.org/10.1021/acs.energyfuels.8b02718

Acceptance date

16/10/2018

Publication date

2018-10-16

Copyright date

2018

ISSN

0887-0624

eISSN

1520-5029

Language

en

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