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Determination of PCBs in fish tissues using supercritical fluid extraction

Article Abstract:

Supercritical fluid extraction (SFE) offers a more effective alternative to traditional schemes used the determination of polychlorinated biphenyls (PCBs) in fish tissues. The method uses readily available materials, such as carbon dioxide, as extracting fluids at temperatures and pressures above the critical level. This approach allows the isolation of PCBs from lip-rich fish tissues without an intermediate off-line lipid removal stage. It also requires less organic solvent than conventional methods.

Author: Hale, Robert C., Gaylor, Michael O.
Publisher: American Chemical Society
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
Tissues, Tissues (Anatomy)

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Determination of PCBs in soil/sediments by microwave-assisted extraction and GC/ECD or ELISA

Article Abstract:

A method for determining polychlorinated biphenyls in soils and sediments by microwave-assisted extraction and gas chromatography/electron capture (GC/ECD) detection is presented. Samples of different soil types are spiked with Aroclor and transferred to an extraction vessel. After extraction, the extract is concentrated and prepared for analysis by GC/ECD. Linear regression techniques are used to determine the concentrations of PCBs in each sample.

Author: Lopez-Avila, Viorica, Benedicto, Janet, Charan, Chatan, Young, Richard
Publisher: American Chemical Society
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
Measurement, Soils, Soil analysis, Sediments (Geology)

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Time response of the Lake Ontario ecosystem to virtual elimination of PCBs

Article Abstract:

A time-dependent ecosystem model for characterizing the time-response effect of polychlorinated biphenyls (PCBs) on environmental fate and food-chain bioaccumulation in Canada's Lake Ontario is presented. It is shown that the model can effectively assess past and future time response when combined with observed PCB concentration time trends.

Author: Gobas, Frank A.P.C., Zhang, Xin, Z'Graggen, Michael N.
Publisher: American Chemical Society
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
Environmental aspects, Lake Ontario

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Subjects list: Research, Methods, Analysis, Polychlorinated biphenyls, Extraction (Chemistry)
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