[Identification of crude oils in Bohai Sea by polycyclic aromatic hydrocarbon fingerprinting].
Crude oils from different sources have quite different polycyclic aromatic hydrocarbon (PAH) distributions. Also, many PAH compounds are more resistant to weathering than their saturated counterparts (n-alkanes and isoprenoids) and volatile alkylbenzene compounds, thus PAils become one of the most valuable classes of hydrocarbons for oil identification using fingerprinting. A reliable, effective, and accurate gas chromatography/mass spectrometry (GC/MS) method for the differentiation and source identification of crude oils by the use of PAH compounds is described. PAll components of 6 crude oil samples from 5 different platforms in 4 different oil fields in Bohal Sea were analyzed by GC/MS. Using different methods, such as the comparisons of original fingerprinting, characteristic information, and diagnostic ratios of PAHs, 6 crude oil samples were identified completely, which showed distinctive characteristics of the same platform oils. Although distinction was diminutive, it can still be identified by GC/MS. PAHs could be used in weathering check of spilled oils in identification and to ensure the correctness of the identification.
Zhao
Yuhui
Y
North China Sea Environmental Monitoring Center, Key Laboratory of Marine Spill Oil Identification and Damage Assessment Technology, State Oceanic Administration, Qingdao 266033, China. zhaoyh@ncsemc.gov.cn
Sun
Peiyan
P
Wang
Xinping
X
Cao
Lixin
L
Zhou
Qing
Q
Li
Guangmei
G
Gao
Zhenhui
Z
D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D057230:Limit of Detection; D009792:Oceans and Seas; D010578:Petroleum / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry*; D015203:Reproducibility of Results
D010578:Petroleum; D011084:Polycyclic Aromatic Hydrocarbons