北京市售黄油中短链及中链氯化石蜡的污染特征  

Characterization of short-and medium-chain chlorinated paraffins in butter in Beijing

作　　者：王润华[1,2] 何俊萍 高丽荣[2] 徐驰[2] 乔林 崔莉莉 WANG Runhua;HE Junping;GAO Lirong;XU Chi;QIAO Lin;CUI Lili(Food Science and Technology Institute,Agriculture University of Hebei,Baoding,071000,China;State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eeo-Environmental Sciences,Chinese Academy of Science,Beijing,100085,China)

机构地区：[1]河北农业大学食品科技学院,保定071000 [2]中国科学院生态环境研究中心环境化学与生态毒理学国家重点实验室,北京100085

出　　处：《环境化学》2018年第11期2473-2480,共8页Environmental Chemistry

基　　金：国家自然科学基金(21377140;21537001);973项目(2015CB453100);中国科学院战略性先导科技专项(XDB14010100;XDB14020102)资助~~

摘　　要：食品是氯化石蜡最重要的暴露途径,而黄油脂肪含量高,可能引起人体高含量的氯化石蜡的暴露.本实验采集了12个北京市售黄油,利用全二维气相色谱电子捕获负化学源质谱技术,分析了短链和中链氯化石蜡在黄油中的污染水平及同类物分布情况.结果表明,短链氯化石蜡在所有黄油样品中均有检出,浓度为134—1.11×10~6ng·g^(-1),中链氯化石蜡部分检出,浓度为ND—5.08×106ng·g^(-1).黄油中短链和中链氯化石蜡的含量与其它食物相比处于较高水平.短链氯化石蜡的主要同类物为C_(10—11)Cl_(7—8),中链氯化石蜡的主要同类物为C_(15—16)Cl_(5—6).黄油中短链氯化石蜡的来源可能与商业产品CP-42的生产和使用有关.In this study,12 butter samples were collected in Beijing,and they were analyzed by two-dimensional gas chromatography coupled with electron-capture negative-ionization mass spectrometry. The concentrations of short-and medium-chain chlorinated paraffins were 134. 12—1.11×10 6 ng·g（-1） and ND—5. 08 × 106 ng·g（-1）,respectively. The concentrations were much higher than those found in other foods. The dominant short-and medium-chain chlorinated paraffins congener groups were C（10—11）Cl（7—8） and C（15—16）Cl（5—6）,respectively. And the congener group profiles were similar to the commercial product CP-42,so the source of chlorinated paraffins in butter may be related to CP-42.

关 键 词：短链氯化石蜡 中链氯化石蜡 黄油 同类物分布 北京 

分 类 号：X56[环境科学与工程—环境工程]