Rapid Magnetic Solid-Phase Extraction Based on Magnetic Multiwalled Carbon Nanotubes for the Determination of Polycyclic Aromatic Hydrocarbons in Edible Oils

文献类型： 外文期刊

第一作者： Zhao, Qin

作者： Zhao, Qin;Luo, Yan-Bo;Ding, Jun;Xiao, Neng;Feng, Yu-Qi;Wei, Fang

作者机构：

关键词： magnetic multiwalled carbon nanotubes;magnetic solid-phase extraction;GC—MS;polycyclic aromatic hydrocarbons;edible oil

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： In this study, magnetic multiwalled carbon nanotubes were fabricated by a simple method and applied to magnetic solid-phase extraction (MSPE) of eight heavy molecular weight polycyclic aromatic hydrocarbons (PAHs) including chrysene, benzo[a]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, indeno[1,2,3-cd]pyrene, dibenzo[a,h]-anthracene and benzo [g,h,i] perylene from edible oil samples. Several parameters affecting the extraction efficiency were investigated, including the type and volume of desorption solvent, extraction and desorption time, washing solution and the amount of sorbent Under the optimized conditions, a simple and effective method for the determination of PAHs in edible oils was developed by coupling with gas chromatography—mass spectrometry (GC—MS). The whole pretreatment process was rapid, and it can be accomplished within 10 min. The limits of quantitation for the target PAHs were found to be 0.34—2.9 ng/g. The recoveries in oil sample were in the range 87.8-122.3% with the RSDs less than 6.8% (intraday) and 9,6% (interday). This method was successfully applied to the analysis of PAHs in seven kinds of edible oils from local markets.

分类号： R15

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