Journal
TALANTA
Volume 85, Issue 2, Pages 919-926Publisher
ELSEVIER
DOI: 10.1016/j.talanta.2011.04.080
Keywords
Hollow fiber; Extraction; Enrichment factor; Aerosol; Polycyclic aromatic hydrocarbons
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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. (C) 2011 Elsevier B.V. All rights reserved.
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