使用美国环境保护局（EPA）方法1668A，通过高分辨率气相色谱/高分辨率质谱法（HRGC/HRMS）测定未风化的多氯联苯混合物中类二噁英多氯联苯同系物的浓度。
Concentrations of dioxin-like PCB congeners in unweathered Aroclors by HRGC/HRMS using EPA Method 1668A.
作者信息
Rushneck Dale R, Beliveau Andy, Fowler Brian, Hamilton Coreen, Hoover Dale, Kaye Katharine, Berg Marlene, Smith Terry, Telliard William A, Roman Henry, Ruder Eric, Ryan Liza
机构信息
Interface, Inc., Fort Collins, CO 80522-0297, USA.
出版信息
Chemosphere. 2004 Jan;54(1):79-87. doi: 10.1016/S0045-6535(03)00664-7.
We have determined the congener compositions of nine commercial Aroclor products of polychlorinated biphenyls (PCBs) to the sub-part-per-million level using high-resolution gas chromatography combined with high-resolution mass spectrometry according to US Environmental Protection Agency (EPA) Method 1668A. These Aroclor composition data should allow improved characterization and risk assessment of PCB contamination at hazardous waste sites, particularly for dioxin-like PCB congeners. By combining the data on the concentrations of each dioxin-like congener with its World Health Organization toxicity equivalency factor, we have established dioxin toxic equivalent concentrations for each pure Aroclor product.
我们已根据美国环境保护局（EPA）方法1668A，使用高分辨率气相色谱法结合高分辨率质谱法，将九种市售多氯联苯（PCB）类Aroclor产品的同系物成分测定至百万分之一以下水平。这些Aroclor成分数据应有助于改进对危险废物场地多氯联苯污染的特征描述和风险评估，特别是对于类二恶英多氯联苯同系物。通过将每种类二恶英同系物的浓度数据与其世界卫生组织毒性当量因子相结合，我们已确定了每种纯Aroclor产品的二恶英毒性当量浓度。
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