Evaluation of diagnostic ratios of medium and serious weathered oils from five different oil sources

Laboratory experiments were conducted to simulate oil weathering process, a medium to long term weathering process for 210-d, using samples collected from five different oil resources. Based on relative deviation and repeatability limit analysis about indexes of these samples, the results show there...

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Bibliographic Details
Published in:Acta oceanologica Sinica 2016-04, Vol.35 (4), p.1-8
Main Authors: He, Shijie, Wang, Chuanyuan, Li, Yantai, Yu, Hongjun, Han, Bin
Format: Article
Language:English
Subjects:
Alkanes
Aromatic hydrocarbons
Climatology
Deviation
Diagnostic systems
Earth and Environmental Science
Earth Sciences
Ecology
Engineering Fluid Dynamics
Environmental Chemistry
Laboratory experimentation
Limit analysis
Marine
Marine & Freshwater Sciences
Oceanography
Oil
Oils & fats
Pollution sources
Polycyclic aromatic hydrocarbons
Ratios
Tracking
Weathering
多环芳烃
实验室实验
正构烷烃
油源
相对标准偏差
评价
诊断
风化过程
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Summary:Laboratory experiments were conducted to simulate oil weathering process, a medium to long term weathering process for 210-d, using samples collected from five different oil resources. Based on relative deviation and repeatability limit analysis about indexes of these samples, the results show there had been significant changes in diagnostic ratios among the initial and weathered samples of different oils during this process. Changes of selected n-alkane diagnostic ratios of all oil samples displayed more obviously than diagnostic ratios of terpanes,steranes and PAHs in this process. Almost all selected diagnostic ratios of terpanes, steranes and PAHs can be efficiently used in tracking sources of hydrocarbon pollution, differentiating from the n-alkane diagnostic ratios.In these efficient diagnostic ratios, only four ratios maintained good stability in the weathering processes and are more suitable because their relative deviation（RSD） are lower than 5%.
ISSN:0253-505X
1869-1099
DOI:10.1007/s13131-015-0721-9