Determination of 57 organic pollutants in edible vegetable oil by gas chromatography-triple quadrupole mass spectrometry
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(1. Hunan Provincial Institute of Produce and Goods Quality Inspection, Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Changsha, Hunan 410111, China; 2. Snowsky Salt Industry Group Co., Changsha, Hunan 410000, China)

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    Abstract:

    Objective: Establish a high throughput method for the determination of 57 organic pollutants in edible vegetable oil. Methods: The target compounds were extracted by acetonitrile-hexane solution and purified by disperse solid phase extraction and solid phase extraction, after that the contents of 16 polycyclic aromatic hydrocarbons, 17 phthalates, 8 organochlorines and 16 polychlorinated biphenyls in edible oil were detected by gas chromatography triple quadrupole mass spectrometry. Results: All target components had an excellent linearity within the linear range of 0.001~0.1 μg/mL (r2>0.998), and the limits of detection was between 0.16~2.0 μg/kg, meanwhile the average recovery rate of matrix addition was between 71.0%~119.5%, and the relative standard deviation was below 12.6% (n=6). Furthermore, the method was used to analyze 24 baches of edible oils, and 25 types of target substances were founded. Conclusion: This method is high efficiency, accuracy, high sensitivity, which has great significance for the monitoring of persistent organic pollutants and phthalates in edible oil.

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刘宇星,易守福,徐文泱,等.气相色谱—三重四极杆质谱法测定食用植物油中57种有机污染物[J].食品与机械英文版,2023,39(6):65-74.

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  • Received:December 26,2022
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  • Online: October 20,2023
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