title: Pressurised liquid extraction of ketones of polycyclic aromatic hydrocarbons from soil.
abstract: Pressurised liquid extraction (PLE) was used in the extraction of three ketones of polycyclic aromatic hydrocarbons from the sample of a soil highly contaminated with polycyclic polyaromatic compounds. The choice of solvent was the only factor that considerably influenced the extraction efficiency of PLE under the conditions recommended in Method 3545A promulgated by the United States Environmental Protection Agency. The dichloromethane-ethanol solvent mixture was found to be the most efficient solvent. PLE using this mixture provided better recoveries of all analysed ketones relative to Soxhlet extraction.
authors.affiliation: Institute of Analytical Chemistry, Brno, Czech Republic. zdrahal@uia.ua.ac.be
authors.forename: Z
authors.initials: Z
authors.lastname: Zdráhal
authors.forename: P
authors.initials: P
authors.lastname: Karásek
authors.forename: L
authors.initials: L
authors.lastname: Lojková
authors.forename: M
authors.initials: M
authors.lastname: Bucková
authors.forename: Z
authors.initials: Z
authors.lastname: Vecera
authors.forename: J
authors.initials: J
authors.lastname: Vejrosta
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D007659:Ketones / Q000302:isolation & purification*; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry*; D012987:Soil / Q000032:analysis*
chemical_list: D007659:Ketones; D011084:Polycyclic Aromatic Hydrocarbons; D012987:Soil