Supercritical CO2-assisted liquid extraction of polycyclic aromatic hydrocarbons and polychlorinated dibenzo-p-dioxins and -furans from solid matrices

In this work we present a supercritical fluid extraction method based on the technique of direct modifier addition. This supercritical CO2-assisted liquid extraction method is shown to be superior to conventional liquid extraction methods such as e.g. Soxhlet extraction. Analytes of interest were polycyclic aromatic hydrocarbons and polychlorinated dibenzo-p-dioxins and -furans in real-world soil samples. (C) 1997 Elsevier Science B.V.