The comparison of naturally weathered oil and artificially photo-degraded oil at the molecular level by a combination of SARA fractionation and FT-ICR MS SCIE SCOPUS

Cited 44 time in WEB OF SCIENCE Cited 45 time in Scopus
Title
The comparison of naturally weathered oil and artificially photo-degraded oil at the molecular level by a combination of SARA fractionation and FT-ICR MS
Author(s)
Islam, Ananna; Cho, Yunju; Yim, Un Hyuk; Shim, Won Joon; Kim, Young Hwan; Kim, Sunghwan
KIOST Author(s)
Yim, Un Hyuk(임운혁)Shim, Won Joon(심원준)
Publication Year
2013-12-15
Abstract
Two sets of oil samples, one obtained from different weathering stages of the M/V Hebei Spirit oil spill site and the other prepared by an in vitro photo-degradation experiment, were analyzed and compared at the molecular level by atmospheric pressure photo-ionization coupled with Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). For a more detailed comparison at the molecular level, the oil samples were separated into saturate, aromatic, resin, and asphaltene (SARA) fractions before MS analysis. Gravimetric analysis of the SARA fractions revealed a decreased weight percentage of the aromatic fraction and an increased resin fraction in both sets of samples. Molecular-level investigations of the SARA fractions showed a significant reduction in the S-1 class in the saturate fraction and increase of S1O1 class compounds with high DBE values in resin fraction. Levels of N-1 and N1O1 class compounds resulting in protonated ions (presumably basic nitrogen compounds) increased after degradation compared to compounds generating molecular ions (presumably non-basic nitrogen compounds). This study revealed changes occurring in heteroatom polar species of crude oils such as sulfur and nitrogen containing compounds that have not been easily detected with conventional GC based techniques. (C) 2013 Elsevier B.V. All rights reserved.
ISSN
0304-3894
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3017
DOI
10.1016/j.jhazmat.2013.09.030
Bibliographic Citation
JOURNAL OF HAZARDOUS MATERIALS, v.263, pp.404 - 411, 2013
Publisher
ELSEVIER
Subject
ATMOSPHERIC-PRESSURE PHOTOIONIZATION; RESONANCE MASS-SPECTRUM; KUWAITI CRUDE-OIL; CONTAINING AROMATICS; PHOTOOXIDATION; SPILL; PHOTODEGRADATION; IDENTIFICATION; CHROMATOGRAPHY; IRRADIATION
Keywords
Oil spill; Photo-degradation; High resolution mass spectrometry; Double bond equivalent; Petroleum
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER
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