title: Determination of polycyclic aromatic hydrocarbons (PAHs) from organic aerosols using hollow fiber micro-porous membrane liquid-liquid extraction (HF-MMLLE) followed by gas chromatography-mass spectrometry analysis.
abstract: A method for determination of polycyclic aromatic hydrocarbons (PAHs) from aerosols was developed. Instead of conventionally used non-polar or slightly polar phenylmethylpolysiloxane column a highly polar, highly substituted, cyanopropyl column (VF-23 MS) was used for separation of PAHs. Based on hollow fiber micro-porous membrane liquid-liquid extraction (HF-MMLLE) a method was developed for sample clean up and pretreatment. An enrichment factor of 617-1022 was obtained with extraction efficiency 10.2-18.9% for different PAHs analyzed in this study. The optimized method was successfully applied to aerosol samples and limits of detection between 1.2 pg m(-3) and 180 pg m(-3) was obtained. Almost all PAHs were found in most of the aerosol samples.
authors: Center for Analysis and Synthesis, Department of Chemistry, Lund University, Sweden. Murtaza.Hyder@organic.lu.se
authors: Murtaza
authors: M
authors: Hyder
authors: Lidia Luque
authors: LL
authors: Aguilar
authors: Johan
authors: J
authors: Genberg
authors: Margareta
authors: M
authors: Sandahl
authors: Clas
authors: C
authors: Wesén
authors: Jan Åke
authors: JÅ
authors: Jönsson