北京地区鸡蛋中多溴联苯醚及甲氧基衍生物污染特征及其膳食风险评估  

Pollution Level and Dietary Risk Assessment of Polybrominated Diphenyl Ethers and Methoxylated Polybrominated Diphenyl Ethers in Egg Samples in Beijing

作　　者：李敏洁[1,2] 张鹏[1] 金芬[1] 乌日娜[1] 邵华[1] 金茂俊[1] 王静[1] 

机构地区：[1]农业部农产品质量安全重点实验室,中国农业科学院农业质量标准与检测技术研究所,北京100081 [2]安阳市疾病预防控制中心,河南安阳455000

出　　处：《食品科学》2016年第15期227-231,共5页Food Science

基　　金：“十二五”国家科技支撑计划项目(2012BAD29B03)

摘　　要：为揭示北京地区鸡蛋中多溴联苯醚(polybrominated diphenyl ethers,PBDEs)及其甲氧基衍生物(methoxylated polybrominated diphenyl ethers,Me O-PBDEs)的污染特征,本实验利用气相色谱-负化学电离源-质谱分析了北京地区65个鸡蛋样品中12种PBDEs及5种Me O-PBDEs的污染水平与组成特征。结果表明,鸡蛋中∑PBDEs和∑Me O-PBDEs的含量水平分别为ND(未检出)~2.21μg/kg(以全蛋湿质量计,下同)和ND^0.89μg/kg,检出率分别为15.38%和4.62%,与国内外相关研究相比处于较低水平。PBDEs中BDE-71的检出质量浓度较高,Me O-PBDEs以Me O-85为主要检出成分,其中蛋黄中的PBDEs和Me O-PBDEs的检出种类数量及含量均高于蛋白。通过膳食风险评估,表明北京市售鸡蛋产品中PBDEs的污染水平和膳食暴露均在可接受的范围内。The pollution levels and composition characteristics of 12 polybrominated diphenyl ethers （PBDEs） and5 methoxylated polybrominated diphenyl ethers （MeO-PBDEs） in 65 egg samples from Beijing markets were examined bygas chromatography-negative chemical ionization mass spectrometry （GC-NCI/MS） to explore their pollution characteristics.The level of total PBDEs detected in egg samples was 2.21 μg/kg, and the level of total MeO-PBDEs were 0.89 μg/kg, whichwere lower than other relevant studies in China and abroad. The relevance ratio of PBDEs and MeO-PBDEs were 15.38%and 4.62% and these pollutants were dominated by BDE-71 and MeO-85. The kinds and levels of analytes in egg yolk werehigher than those in egg white. Pollution level and dietary risk assessment of PBDEs in eggs showed acceptable levels ofPBDEs in eggs from Beijing supermarkets.

关 键 词：鸡蛋 多溴联苯醚及甲氧基衍生物 污染水平 膳食风险评估 

分 类 号：O657.63[理学—分析化学]