Liquid-liquid extraction of polycyclic aromatic hydrocarbons in four different edible oils from China

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• 作者：Shimin Wu^a ; ^b ; ^{wushimin@sjtu.edu.cn} ; Wenjuan Yu^c
• 关键词：Polycyclic aromatic hydrocarbons ; Used cooking oil ; Olive oil ; Peanut oil ; GC&ndash ; MS
• 刊名：Food Chemistry
• 出版年：2012
• 期刊代码：48_03088146
• 类别：abs
• 出版时间：1 September, 2012
• 卷：134
• 期：1
• 页码：597-601
• 文件大小：406 K

摘要

Concentrations of 16 polycyclic aromatic hydrocarbons (PAHs) were measured in four edible oils collected in China (olive oil, peanut oil, oil collected from a kitchen range hood, and oil from a fried food stall). The PAHs were liquid-liquid extracted with n-hexane and N,N-dimethylformamide, then passed through a florisil solid phase extraction cartridge for clean-up, and submitted to GC-MS for determination. The mean concentration (n = 3) of light PAHs ranged from 0.82 渭g/kg for chrysene (peanut oil sample) to 457.12 渭g/kg for acenaphthylene (olive oil sample). For heavy PAHs, the mean concentration (n = 3) ranged from 0.68 渭g/kg for benzo[a]pyrene in the peanut oil sample to 16.35 渭g/kg for benzo[b]fluoranthene in the olive oil sample. Data analysis suggested that the concentrations of different PAHs could be used for quality discrimination of vegetable oils. A large-scale investigation on the level of PAHs in edible vegetable oils available in China is required.