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Pressurised Liquid Extraction of Polycyclic Aromatic Hydrocarbons from Gas and Particulate Phases of Atmospheric Samples by Maria Rosa Ras; Francesc Borrull; Rosa Maria Marcé is a Chemistry article available to read on EtoBox.

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## Abstract Pressurised liquid extraction (PLE) was applied to determine the atmospheric levels of 16 polycyclic aromatic hydrocarbons (PAHs) in the gas and particulate phases. The method involved high‐volume air sampling with quartz fibre filters (QFFs) and polyurethane foam (PUF) plugs and analytes were subsequently extracted from the samples by PLE, and determined with GC‐MS. We optimised the PLE conditions for the solvent, the number of cycles and extraction temperature. Recoveries were higher than 90% for most compounds. Method LODs and LOQs were between 0.001 and 0.02 ng/m^3^ and between 0.01 and 0.05 ng/m^3^. Air samples were taken from a site in the region of Tarragona in Catalonia, Spain, where one of the largest petrochemical complexes in southern Europe is located. The total concentration of PAHs were from 6.7 to 27.66 ng/m^3^, with predominant levels of PAHs appearing in the gas phase (48–81%), and an average level of benzo[__a__]pyrene, the most carcinogenic PAH, of 0.86 ng/m^3^.

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Author

Maria Rosa Ras; Francesc Borrull; Rosa Maria Marcé

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 1615-9306)

Published

2009

Language

EN

Field

Chemistry (Physical Sciences)