00000nam 2200000zi 4500 9.876550 CaOODSP 20241203113650 m go d f cr |n||||||||| 190718s1991 onc #otb f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/91-104E-PDF Onuska, Francis I., 1935- author. Supercritical fluid extraction of polychlorinated dibenzo-p-dioxins from municipal incinerator fly ash / Francis I. Onuska and K.A. Terry. Burlington, Ontario : National Water Research Institute = Institut national de recherche sur les eaux, [1991] 1 online resource (iv, 14 pages). text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 91-104 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 14). "Supercritical fluid extraction can be used to extract chlorinated dibenzo-p-dioxins from fly ash. The ability of supercritical fluid extraction (SFE) to remove polychlorinated dibenzo-p-dioxins (PCDDs) from an incinerator fly ash sample was investigated employing supercritical nitrous oxide and its mixtures with methanol, and toluene. The use of a virtually inert fluid such as pure nitrous oxide provides significant improvement over conventional extraction procedures in that no solvent residue is left in the processed extract. Recoveries of individual PCDD congeners were calculated from the analysis of C-13 labelled dioxins employing selected ion monitoring high resolution gas chromatography-mass spectrometry (HRGC/MS)"--Abstract. Includes abstract in French. gccst Water management gccst Water pollution Terry, K. A., author. Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; 91-104. (CaOODSP)9.844121 PDF 1.64 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-91-104-eng.pdf