The Identification of Oil Spill of Marine Fuel and Crude Oil by Carbon Stable Isotopes Ratio

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Journal of Dalian Maritime University ›› 2014, Vol. 40 ›› Issue (4) : 109-112.

LIU Xiao-xing, TANG Xiao-hua, LIAN Han-yi, GONG Wei-min

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Abstract

Gas chromatography/stable isotope ratio mass spectrometry (GC/IrMS) was used to analyze the stable carbon isotope ratio (δ13C) of individual n-alkane in marine fuel and crude oil from Malaysia, Iraq and China’s Daqing. The characteristics of δ13C of marine fuel and crude oil were summarized according to the differences between both. The δ13C of marine fuel is -32.0±0.6 and has a large fluctuation. The δ13C of crude oil of Malaysia, Iraq and Daqing is -27.0±0.4, -27.9±0.5, and -31.4±0.4, respectively, and has a small fluctuation. From the geographical point of view, the crude oil origin closer to the equator, the higher its δ13C. It is feasible for the identification of oil spill according to δ13C differences.

Key words

stable carbon isotope / marine fuel / crude oil / identification

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LIU Xiao-xing, TANG Xiao-hua, LIAN Han-yi, GONG Wei-min. The Identification of Oil Spill of Marine Fuel and Crude Oil by Carbon Stable Isotopes Ratio[J]. Journal of Dalian Maritime University. 2014, 40(4): 109-112

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