کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1194758 1492345 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Direct quantification of PAHs in biomass burning aerosols by desorption electrospray ionization mass spectrometry
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Direct quantification of PAHs in biomass burning aerosols by desorption electrospray ionization mass spectrometry
چکیده انگلیسی

Desorption electrospray ionization mass spectrometry (DESI-MS) technique was applied to the quantitative analysis of polycyclic aromatic hydrocarbons (PAHs) in biomass burning aerosols. Experimental conditions were optimized to enhance the detection efficiencies of PAHs. DESI-MS signal intensities showed good linear responses to the amount of PAHs in a dynamic range of four orders of magnitude and the detection limit is about 1 pg/mm2. Mass concentrations of three-, four-, five-, six-ring PAHs in laboratory-made rice straw burning aerosols were directly measured by DESI-MS without any sample pretreatment. The results agree well with the parallel measurement by traditional GC–MS. DESI phenomenon was also observed for other compounds in biomass burning aerosols such as sugars, inorganic and organic acids. Potential applications of DESI-MS to the rapid analysis of multiple components in aerosol samples were discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mass Spectrometry - Volume 281, Issues 1–2, 15 March 2009, Pages 31–36
نویسندگان
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