کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1242357 | 969632 | 2011 | 8 صفحه PDF | دانلود رایگان |
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.
Journal: Talanta - Volume 85, Issue 2, 15 August 2011, Pages 919–926