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Updated: Feb 15, 2026

Enhanced Oil Recovery using a Combination of Biosurfactants
Published on: June 3, 2022
Oil mixing behavior after an oil spill: identification conflicts of different fingerprints
Shijie He1,2, Hongjun Yu3,4, Yongming Luo3
1Coast Institute, Ludong University, Yantai, 264025, People's Republic of China. yantaienv@126.com.
Abstract:
Clearing up whether spilled oil is mixed or not can strengthen the accuracy of oil spill identification. In the present study, the biomarkers in spilled oil samples were detected. The weathering modes of different types of diagnostic ratio and carbon isotope values of individual n-alkanes were also analyzed. The results showed that the diagnostic ratios of steroids, terpenes and aromatics, and weathering characteristics of carbon isotope composition (δ13C) of individual n-alkanes supported the idea that Dalian oil spill emerged from a single oil source. Furthermore, commonly used diagnostic ratios of n-alkanes indicated that the Dalian oil spill had undergone the oil mixing process. The different identifying outcomes indicate that some kinds of n-alkane-rich substance (such as oil dispersants) were mixed in the Dalian spilled oil and interfered with the routine diagnosis ratios of n-alkanes.
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