Extraction of polychlorinated biphenyl with supercritical carbon dioxide, sulfur hexafluoride and subcritical water |
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| Authors: | Simone Pross Wolfgang Gau B W Wenclawiak |
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| Institution: | Bayer AG, Landwirtschaftszentrum, Alfred-Nobel-Str. 50, 40789 Monheim, Germany, DE
Universit?t Siegen, Adolf-Reichwein-Strasse 2, 57068 Siegen, Germany e-mail: wenclawiak@chemie.uni-siegen.de, DE
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| Abstract: | In the extraction of spiked PCB from soil, three extracting fluids were investigated: supercritical carbon dioxide (CO2), supercritical sulfur hexafluoride (SF6) and subcritical water. Among the tested fluids SF6 appeared to be appropriate especially for the extraction of low polar PCB. CO2 and water were found to be suitable for the quantitative extraction of all PCB. Water was judged as the best because of its low price, good availability and environmental safety. |
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