00000nam 2200000zi 4500 9.877944 CaOODSP 20241203113651 m go d f cr |n||||||||| 190814s1992 oncd #otb f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/92-15E-PDF Onuska, Francis I., 1935- author. The analysis of chlorinated dibenzofurans in municipal fly ash : supercritical fluid extraction vs Soxhlet / F.I. Onuska, K.A. Terry and R.J. Wilkinson. Burlington, Ontario : Research and Applications Branch, National Water Research Institute, [1992] 1 online resource (11, [10] pages) : figures. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 92-15 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 10). "A multiresidue supercritical fluid extraction procedure for chlorinated dibenzofurans (PCDFs) has been optimized as an efficient method for the determination of these compounds in fly ash samples. The results were compared with those obtained by Soxhlet extraction. Extracts from the two procedures were analyzed by gas chromatography-mass spectrometry (HRGC-MS) and statistical data confirmed that supercritical fluid extraction provides data with a relative standard deviation of less than 6% while Soxhlet extraction data show a much greater spread"--Abstract. Includes abstract in French. gccst Water pollution Terry, K. A., author. Wilkinson, R. J., author. Canada. Environment Canada. National Water Research Institute (Canada). Research and Applications Branch. NWRI contribution ; 92-15. (CaOODSP)9.844121 PDF 1.92 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-92-15-eng.pdf