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Perfluorinated compounds in milk, milk powder and yoghurt purchased from markets in China

ISSN号：1001-6538
期刊名称：Chinese Science Bulletin
时间：0
页码：1020-1025
分类：TS195.5[轻工技术与工程—纺织化学与染整工程;轻工技术与工程—纺织科学与工程] TS252.1[轻工技术与工程—农产品加工及贮藏工程;轻工技术与工程—食品科学与工程]
作者机构：[1]State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences, Chinese Academy ofSciences, Beijing 100085, China
相关基金：This work was supported by the Major Research Program of Chinese Academy of Sciences （Grant No. KZCX2-YW-420-1）, National HighTechnology Research and Development Program of China （Grant No. 2007AAO6Z405）, National Natural Science Foundation of China （Grant Nos. 20837003 and 20890111） and the National Basic Research Program of China （Grant No.2009CB421605）.
相关项目：典型持久性有机污染物的环境界面过程及生物有效性

关键词：全氟化合物, 牛奶样品, 中国市场, 酸奶, 奶粉, 电喷雾串联质谱, 全氟辛酸铵, 高效液相色谱, Perfluorinated compounds, milk, milk powder, yoghurt

中文摘要：

到通过为人的食谱的 perfluorinated 混合物(陆军) 的暴露担心大。在食谱之中，奶店产品在大需求。这份报纸在从 2008 ～ 2009 从中国市场购买的牛奶，奶粉和酸奶酪报导 9 perfluorinated 酸和 2 fluorotelomer 酸的学习 on the levels。analytes 被高效液体 chromatography/electrospray 双人脚踏车团 spectrometry (HPLC-ESI-MS/MS ) 测定。在牛奶样品， perfluoroheptanoic 酸(PFHpA ) 和 perfluorononanoic 酸(PFNA ) 经常被检测，两个在 68% 样品。在样品， perfluorooctane sulfonate (PFOS ) ， perfluorooctanoic 酸(PFOA ) 和 PFNA 是的奶粉，他们的唯一的检测陆军和没有在超过 35% 样品被观察。在酸奶酪， PFOA 是最经常检测的混合物，在 69% 样品发现。任何一个都没在任何样品 fluorotelomer 酸被观察。全部的陆军的吝啬的集中在牛奶，在奶粉的 98 pg/g (干燥重量) 和在酸奶酪(湿重量) 的 42 pg/g 是 178 pg/g (湿重量) 。这研究的数据显示重要差别，是著名的(P < 0.001 ) 在三种在全部的陆军的集中包装牛奶之中。对牛奶和奶店产品消费的一个初步的人的健康风险评价在这研究被进行。为成年人， PFOS 和全部的陆军的吝啬的每日的吸入等于或比 23 和 167 pg kg 降低 ? 1 d ? 1 (身体重量) 分别地。

英文摘要：

The exposure to perfiuorinated compounds （PFCs） through the diet for humans is of great concern. Among the diet, dairy products are in great demand. This paper reports the study on the levels of 9 perfluorinated acids and 2 fluorotelomer acids in milk, milk powder and yoghurt purchased from Chinese markets from 2008 to 2009. The analytes were quantitated by high performance liquid chromatography/electrospray tandem mass spectrometry （HPLC-ESI-MS/MS）. In milk samples, perfluoroheptanoic acid （PFHpA） and perfiuorononanoic acid （PFNA） were detected frequently, both in 68% of samples. In milk powder samples, perfluorooctane sulfonate （PFOS）, perfluorooctanoic acid （PFOA） and PFNA were the only detected PFCs and none of them was observed in more than 35% of samples. In yoghurt, PFOA was the most frequently detected compound, found in 69% of samples. None of fluorotelomer acids was observed in any samples. The mean concentrations of total PFCs were 178 pg/g （wet weight） in milk, 98 pg/g （dry weight） in milk powder and 42 pg/g in yoghurt （wet weight）. It is notable that the data of this study indicate significant differences （P〈0.001） among three kinds of packaging of milk in the concentration of total PFCs. A preliminary human health risk assessment of milk and dairy products consumption was conducted in this study. For adults, the mean daily intake of PFOS and total PFCs was equal to or lower than 23 and 167 pg kg^-1 d^-1 （body weight）, respectively.