Structure-dependent degradation of polar compounds in weathered oils observed by atmospheric pressure photo-ionization hydrogen/deuterium exchange ultrahigh resolution mass spectrometry SCIE SCOPUS

Cited 28 time in WEB OF SCIENCE Cited 29 time in Scopus
Title
Structure-dependent degradation of polar compounds in weathered oils observed by atmospheric pressure photo-ionization hydrogen/deuterium exchange ultrahigh resolution mass spectrometry
Author(s)
Islam, Ananna; Kim, Donghwi; Yim, Un Hyuk; Shim, Won Joon; Kim, Sunghwan
KIOST Author(s)
Kim, Dong Hwi(김동휘)Yim, Un Hyuk(임운혁)Shim, Won Joon(심원준)
Publication Year
2015-10
Abstract
The resin fractions of fresh mixtures of three oils spilled during the M/V Hebei Spirit oil spill, as well as weathered oils collected at weathering stages II and IV from the oil spill site were analyzed and compared by atmospheric pressure photo-ionization hydrogen/deuterium exchange mass spectrometry (HDX MS). The significantly decreased abundance of N+center dot and [N - H + D](+) ions suggested that secondary and tertiary amine-containing compounds were preferentially degraded during the early stage of weathering. [N + H](+) and [N + D](+) ions previously attributed to pyridine-type compounds degraded more slowly than secondary and tertiary amine-containing compounds. The preferential degradation of nitrogen-containing compounds was confirmed by photo-degradation experiments using 15 standard compounds. In addition, significant increases of [S1O1 + H](+) and [S1O1 + D](+) ions with higher DBE values were observed from fresh oil mixtures as compared to stages II and IV samples, and that could be linked with the decrease of higher DBE compounds of the Si class. This study presented convincing arguments and evidence demonstrating that secondary and tertiary amines were more vulnerable to photo-degradation than compounds containing pyridine, and hence, preferential degradation depending on chemical structures must be considered in the production of hazardous or toxic components. (C) 2015 Elsevier B.V. All rights reserved.
ISSN
0304-3894
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2388
DOI
10.1016/j.jhazmat.2015.04.042
Bibliographic Citation
JOURNAL OF HAZARDOUS MATERIALS, v.296, pp.93 - 100, 2015
Publisher
ELSEVIER
Keywords
Oil spill; Photo-degradation; Atmospheric pressure photo-ionization hydrogen/deuterium exchange mass spectrometry (HDX MS); Ultrahigh resolution mass spectrometry; Double bond equivalent; Petroleum
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER
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