Preliminary Study on Difference of Fingerprint Characteristics Between Fuel Oil and Typical Crude Oil from Bohai Sea

The characteristic information and fingerprints between 3 kinds of fuel oil and the typical oil SZ36-1 from Bohai Sea were discussed. As shown by the results of GC-MS study, remarkable differences of characteristic ratios of nC17/Pr and nC18/Ph were found between the 3 fuel oil and the typical Bohai crude oil; the differences of contents of PAH′s in the oil did not reflect their essential specificities. The characteristic rations of 33 biomarker in the oil were selected for comparison and similarity among the 3 fuel oil were shown by 69.70% of the ratio values, while differences between the fuel oil and typical crude oil were shown by 30.30% of the ratio values. Therefore, these characteristic targets could be applied to the identification of fuel oil and crude oil.