کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1248566 | 970444 | 2007 | 10 صفحه PDF | دانلود رایگان |
Several volatile organic compounds (VOCs) have adverse health effects and contribute to reactions promoting photochemical smog. The estimated world-wide average emissions of VOCs are about 1809 million tons/year. This overview focuses on the most commonly used methods for real-time monitoring of VOCs in ambient air, including differential optical absorption spectroscopy (limit of detection (LOD) ∼2.6 μg/m3), low-pressure chemical ionization/tandem mass spectrometry (MS2) (LOD ∼2.0 μg/m3), atmospheric pressure chemical ionization/MS2 (LOD ∼38.3 μg/m3) and proton-transfer reaction MS (LOD ∼0.3 μg/m3). Finally, we present the results from some comparative studies of atmospheric aromatic hydrocarbon measurements involving real-time monitoring methods and gas chromatography-related conventional techniques.
Journal: TrAC Trends in Analytical Chemistry - Volume 26, Issue 9, October 2007, Pages 931–940