Survey of polycyclic aromatic hydrocarbons of vegetable oils and oilseeds by GC-MS in China
Survey of polycyclic aromatic hydrocarbons of vegetable oils and oilseeds by GC-MS in China
复制标题
我国植物油和油籽中多环芳烃的GC-MS调查
DOI：
10.1080/19440049.2016.1144935
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发表时间：
2016-02
期刊：
影响因子：
--
通讯作者：
Yu-Lan Liu
中科院分区：
文献类型：
--
作者：
Long-Kai Shi;Dong-Dong Zhang;Yu-Lan Liu
摘要我国食用植物油和油料中多环芳烃（PAH）的污染状况和含量尚缺乏相关资料。结合超声波辅助萃取、低温分离和硅胶固相萃取净化的优点，建立了一种基于GC-MS的测定USEPA中16种多环芳烃的方法，填补了这一空白。油脂和油料的方法回收率分别为84.4-113.8%和84.3- 115.3%。16种多环芳烃的检出限和定量限分别为0.06-0.17和0.19-0.56 μg kg-1。利用建立的方法对21种食用油和17种油料中多环芳烃的含量进行了测定。几乎所有的多环芳烃都被检测到，特别是轻多环芳烃（LPAHs）。三个油样超过了中国规定的苯并（a）芘最大限量10微克/千克。然而，五个和六个油样分别超过了欧洲联盟为BaP和PAH 4设定的2和10 μg kg-1的最高限值。油料样品中PAH 16的浓度比相应的油样品高1.5倍。PAH 4与PAH 8、PAH 4与PAH 16以及PAH 8与PAH 16之间的关系表明，与PAH 8相比，PAH 4可以充分替代食用油中的多环芳烃污染水平。
ABSTRACT There is a lack of information regarding the occurrence and content of contamination of polycyclic aromatic hydrocarbon (PAH) in edible vegetable oils and oilseeds used for oil production in China. By combining the advantages of ultrasound-assisted extraction, low temperature separation and silica SPE purification, a method for the determination of the USEPA, 16 PAHs was developed based on GC-MS to fill this gap. The method recoveries for oils and oilseeds were 84.4–113.8% and 84.3–115.3%, respectively. The LODs and LOQs for 16 PAHs were ranged from 0.06–0.17 and 0.19–0.56 μg kg–1, respectively. Based on the established method, PAH concentrations in 21 edible oils and 17 oilseeds were determined. Almost all the PAHs were found in all the samples tested, especially the light PAHs (LPAHs). Three oil samples exceeded the maximum level of 10 μg kg–1 for BaP set by China. However, five and six oil samples, respectively, exceeded the maximum limits of 2 and 10 μg kg–1 set for BaP and PAH4 by the European Union. The concentrations of PAH16 in oilseed samples were 1.5 times higher than corresponding oil samples. The relationships between PAH4 and PAH8, PAH4 and PAH16 as well as PAH8 and PAH16 indicates that PAH4 is a sufficient surrogate for the contamination level of PAHs in edible oils when compared with PAH8.
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DOI：
--
发表时间：
2008
期刊：
--
影响因子：
--
作者：
J. Larsen
通讯作者：
J. Larsen
影响因子：
6
作者：
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影响因子：
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通讯作者：
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影响因子：
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作者：
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Fytianos, Konstantinos
影响因子：
2.9
作者：
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