Ultrasonication extraction and gel permeation chromatography clean-up for the determination of polycyclic aromatic hydrocarbons in edible oil by an isotope dilution gas chromatography–mass spectrometry

Journal of Chromatography. a
Jian-Hua Wang, Cui Guo

Abstract

An analytical method for the determination of US EPA priority pollutant 16 polycyclic aromatic hydrocarbons (PAHs) in edible oil was developed by an isotope dilution gas chromatography-mass spectrometry (GC-MS). Extraction was performed with ultrasonication mode using acetonitrile as solvent, and subsequent clean-up was applied using narrow gel permeation chromatographic column. Three deuterated PAHs surrogate standards were used as internal standards for quantification and analytical quality control. The limits of quantification (LOQs) were globally below 0.5 ng/g, the recoveries were in the range of 81-96%, and the relative standard deviations (RSDs) were lower than 20%. Further trueness assessment of the method was also verified through participation in international cocoa butter proficiency test (T0638) organised by the FAPAS with excellent results in 2008. The results obtained with the described method were satisfying (z ≤ 2). The method has been applied to determine PAH in real edible oil samples.

Citations

Feb 3, 2016·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Long-Kai ShiYu-Lan Liu
Jun 11, 2014·Critical Reviews in Food Science and Nutrition·Iria Yebra-PimentelJesús Simal-Gándara
Jun 24, 2017·Food Additives & Contaminants. Part B, Surveillance·Yun-Qi WenYu-Xiang Ma
Oct 17, 2017·Environmental Science and Pollution Research International·Sunil KumarPralay Maiti
Jun 8, 2017·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Ke-Jing AnHai-Lan Liu
Jan 19, 2021·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Yeşim Altunoğlu, Fahri Yemişçioğlu
Dec 19, 2020·Comprehensive Reviews in Food Science and Food Safety·Carmen M Sánchez-ArévaloAlegría Carrasco-Pancorbo

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