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
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(1. 湖南省产商品质量检验研究院食品安全监测与预警湖南省重点实验室,湖南 长沙 410111;2. 雪天盐业集团股份有限公司,湖南 长沙 410000)

作者简介:

刘宇星,女,湖南产商品质量检验研究院工程师,硕士。

通讯作者:

汪霞丽(1985—),女,湖南产商品质量检验研究院高级工程师,硕士。E-mail:284437292@qq.com

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基金项目:

湖南创新型省份建设专项(编号:2020SK2128);湖南省市场监督管理局科技计划项目(编号:2021KJJH47,2021KJJH05)


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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    摘要:

    目的:建立高通量测定食用植物油中57种有机污染物的分析方法。方法:样品中的目标物通过乙腈—正己烷溶液提取,经分散固相萃取法与固相萃取净化法净化,采用气相色谱—三重四极杆质谱法测定食用油中16种多环芳烃、17种邻苯二甲酸酯、8种有机氯和16种多氯联苯的含量。结果:所检测的目标物在0.001~0.1 μg/mL的质量浓度范围内呈良好的线性关系(2>0.998),检出限为0.16~2.0 μg/kg,基质加标平均回收率为71.0%~119.5%,相对标准偏差≤12.6%(n=6)。采用此方法对24批市售的食用油进行检测,其中25种目标物在样品中有检出。结论:该方法高效、准确、高灵敏度,对持久性有机污染物与邻苯二甲酸酯在食用油中的监测有着重要意义。

    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,2023,39(6):65-74.
LIU Yu-xing, YI Shou-fu, XU Wen-yang, et al. Determination of 57 organic pollutants in edible vegetable oil by gas chromatography-triple quadrupole mass spectrometry[J]. Food & Machinery,2023,39(6):65-74.

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  • 收稿日期:2022-12-26
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  • 在线发布日期: 2023-10-20
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