多级硅胶/氧化铝柱和GC/MS法测定焚烧炉固体排放物中的痕量PCBs  

DETERMINATION OF RESIDUAL PCBs IN THE SOLID WASTES OF INCINERATOR

作　　者：李灵军[1] 陈宇东[1] 周祎鹏 吴季茂[2] 蒋可[1] 

机构地区：[1]中国科学院生态环境研究中心,北京100085 [2]北京工业大学

出　　处：《环境化学》1995年第4期322-328,共7页Environmental Chemistry

基　　金：国家"八五"科技攻关项目

摘　　要：本文采用多段硅胶柱与碱性氧化铝柱提取纯化焚烧炉烟灰和炉灰中残留的多氯联苯(PCBs).用^(13)C标记物测定了回收率,比较了固体作品的索氏提取法和柱直接提取法,结果表明:柱提取方法是一种快速有效测定固体物中PCBs的方法.应用HRGC/MS及 GC/ECD定量测定了焚烧炉固体排放物中PCBs总残留量及同系物含量.Acid/base silica column and basic alumina column cleanups are applied to the extraction and purification of residual polychlormatd biphenyls (PCBs) in the solid wastes of incinerator. Recoveries of 13C-labelled PCBs surrogates were determined and the comparison was made between methods of Soxhlet extraction and column extraction. This method is proved to be effective and convenient for the extraction of PCBs from solid waste samples. In addition, the content of PCB homologes in the stack ash were determined by high resolution gas chromatography and mass spectrometry (HRGC/MS).

关 键 词：多级硅胶柱 焚烧 固体排放物 多氯联苯 测定 

分 类 号：X132[环境科学与工程—环境科学]