Polychlorinated dibenzofurans, quantitative determination

For the quantitative determination of polychlorinated diben-zodioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs), sample treatment and conservation play crucial roles, too. Only some of the 75 PCDD isomers and 135 PCDF isomers are highly toxic. The collection and analysis of the hazardous compounds present at ultratrace levels in environmental samples must preferably be isomer-specific. The exposure routes for these compounds originate from combustion processes (18-19). 

Quantitative structure-retention relationships (QSSRs) have been established for polychlorinated dibenzofurans to assist their determination by gas chromatography (GC) <2002MI7, 2003ANC1049, 2005MI1683>. 

Oehme, M., J. Klungs0yr, A. Biseth M. Schlabach, 1993. Quantitative determination of ppq-ppt levels of polychlorinated dibenzo-p-dioxins and dibenzofurans in sediments from the Arctic (Barents Sea) and the North Sea. Anal. Method Instmm. 1 153-163. 

Oehme M, Mano S, Mikalsen A, et al. 1986. Quantitative method for the determination of femtogram amounts of polychlorinated dibenzo-p-dioxins and dibenzofurans in outdoor air. Chemosphere 15 607-617. 

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