Cantilever-Enhanced Photoacoustic Detection and Infrared Spectroscopy of Trace Species Produced by Biomass Burning

被引：10
|
作者：
Dostal, Michal [1 ,2 ]
Suchanek, Jan [1 ]
Valek, Vaclav [1 ,2 ]
Blatonova, Zuzana [3 ]
Nevrly, Vaclav [2 ]
Bitala, Petr [2 ]
Kubat, Pavel [1 ]
Zelinger, Zdenek [1 ]
机构：
[1] Czech Acad Sci, J Heyrovsky Inst Phys Chem, Dolejskova 3, Prague 18223 8, Czech Republic
[2] Tech Univ Ostrava VSB, Fac Safety Engn, Ostrava 70800, Czech Republic
[3] Tech Univ Ostrava VSB, Fac Mech Engn, Ostrava 70800, Czech Republic
来源：
ENERGY & FUELS | 2018年 / 32卷 / 10期
关键词：
HIGH-PRESSURE GASES; WAVELENGTH-MODULATION; SPECTROMETRY; EMISSIONS; LASERS; FIRE;
D O I：
10.1021/acs.energyfuels.8b01021
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The applicability of cantilever-enhanced photoacoustic spectroscopy (CEPAS), which exploits the unique properties of a micromechanical lever sensor (cantilever) in combination with tunable quantum cascade lasers (QCLs), is evaluated for the monitoring of several species produced by biomass burning. The detection limits of the selected molecules (HCOOH, CH3CN, CH3OH, CH3COCH3, CO2, and N2O) for a commercial CEPAS unit (GASERA) used together with QCLs were estimated under laboratory conditions. The normalized noise equivalent absorption (NNEA) coefficients for these molecules were determined experimentally, and the theoretical detection limits for the relevant biomass-burning products, accessed in the spectral ranges of available commercial QCLs in the mid-infrared region, were extrapolated using the determined NNEA values and the spectra simulated with the SpectraPlot software.
引用
收藏
页码：10163 / 10168
页数：6
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