Inclusion of ¹³C₁₂-labelled mono-, di-, and tri-chlorinated dibenzo-p-dioxin and dibenzofuran standards in US EPA methods 0023A/8290

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• 作者：Gullett ; Brian K. ; Ryan ; Jeffrey V. ; Tabor ; Dennis
• 关键词：Dioxin ; Isotopes ; Standards ; Analytical methods ; Halogenated organics ; Air pollution
• 刊名：Chemosphere
• 出版年：2001
• 期刊代码：15_00456535
• 类别：env
• 出版时间：May, 2001
• 卷：43
• 期：4-7
• 页码：403-406
• 文件大小：53.5 K

摘要

¹³C₁₂-Labelled mono-, di-, and tri-chlorinated dibenzo-p-dioxin (CDD) and chlorinated dibenzofuran (CDF) standards have been tested for their applicability to standard EPA sampling and analytical Methods 0023A/8290. These methods target for analysis only the tetra- through octa-CDD/CDF homologues. Extension of the isotope dilution method to include those lower chlorinated homologues is important toward obtaining reliable species concentration data on the complete, mono- to octa-chlorinated homologue profile. These data will improve our ability to model poly-CDD/CDF concentrations through understanding mechanisms of poly-CDD/CDF formation, chlorination, and dechlorination.