Estimating degree of degradation of spilled oils based on relative abundance of aromatic compounds observed by paper spray ionization mass spectrometry SCIE SCOPUS

Cited 6 time in WEB OF SCIENCE Cited 7 time in Scopus
Title
Estimating degree of degradation of spilled oils based on relative abundance of aromatic compounds observed by paper spray ionization mass spectrometry
Author(s)
Kim, Donghwi; Ha, Sung Yong; An, Joon Geon; Cha, Sangwon; Yim, Un Hyuk; Kim, Sunghwan
KIOST Author(s)
Kim, Donghwi(김동휘)Ha, Sung Yong(하성용)An, Joon Geon(안준건)Yim, Un Hyuk(임운혁)
Publication Year
2018-10
Abstract
Paper spray ionization mass spectrometry (PSI-MS) was applied for the first time to study temporal change of photo-oxidized and weathered oils subjected to degradation. PSI is chosen in this study because it is an optimal ionization technique for the analysis of degraded oils with limited sample quantity and prone to salt and particulate contamination. With PSI-MS, quantitative analysis of oils can be successfully performed with as little as 2 mu g of oil sample. In addition, oil solutions containing up to 0.05% sodium chloride were successfully analyzed with PSI-MS. In the PSI-MS spectra of photo-degraded oils, the relative abundance of compounds having double equivalence value (DBE) >= 5 increased but those with DBE < 5 decreased in number. The summed abundance ratio of compounds having DBE < 5 and DBE >= 5 showed a negative exponential correlation with the duration of UV exposure in laboratory experiments. The same trend was observed from spilled oils obtained from the environment. Therefore, this ratio serves as an effective means to estimate the degree of weathering in spilled oils.
ISSN
0304-3894
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/816
DOI
10.1016/j.jhazmat.2018.07.060
Bibliographic Citation
JOURNAL OF HAZARDOUS MATERIALS, v.359, pp.421 - 428, 2018
Publisher
ELSEVIER SCIENCE BV
Keywords
Paper spray ionization; Spilled oils; Photo-degradation; Photo-oxidation; Oil weathering
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCIENCE BV
Related Researcher
Research Interests

Oil Spill Environmental Forensics,Persistent Organic Pollutants,Marine Aerosol,유류오염 환경법과학,지속성유기오염물질,해양 에어로졸

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