6533b826fe1ef96bd1284f7c
RESEARCH PRODUCT
Study of polychlorinated biphenyls in street dust by supercritical fluid extraction-gas chromatography/mass spectrometry
Wolfram BaumannYu Yangsubject
ChromatographyChemistryEnvironmental chemistrySupercritical fluid extractionStreet dustGas chromatographyGas chromatography–mass spectrometryMass spectrometryBiochemistryWest germanyGasoline stationdescription
Street dust samples have been collected from highways, urban streets, a gasoline station, a pedestrian tunnel, and railway stations in some German cities. Nine polychlorinated biphenyls (PCBs from tri- to heptachlorobiphenyls) were quantitatively extracted by supercritical fluid extraction with CO2 at 200 bar and 40°C and analyzed by gas chromatography/mass spectrometry. The highest PCB loads (sum of the nine studied PCBs) of ca. 1 to 4 μg/g have been found in the samples from motorway A60 near Mainz, while in almost all other samples PCBs could be detected at only ca. 0.1 to 1 μg/g. At three sampling sites, a winter maximum of the PCB concentrations has been found.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-01-01 | Fresenius' Journal of Analytical Chemistry |