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

0495955 - ÚFCH JH 2019 RIV US eng J - Článek v odborném periodiku
Dostál, Michal - Suchánek, Jan - Válek, V. - Blatoňová, Z. - Nevrlý, V. - Bitala, P. - Kubát, Pavel - Zelinger, Zdeněk
Cantilever-Enhanced Photoacoustic Detection and Infrared Spectroscopy of Trace Species Produced by Biomass Burning.
Energy and Fuels. Roč. 32, č. 10 (2018), s. 10163-10168. ISSN 0887-0624. E-ISSN 1520-5029
Grant CEP: GA ČR(CZ) GA17-05167s; GA MŠMT(CZ) LTC17071
Grant ostatní: European Cooperation in Science & Technology(XE) CM1404
Institucionální podpora: RVO:61388955
Klíčová slova: Infrared spectroscopy * Biomass * Nanocantilevers
Obor OECD: Physical chemistry
Impakt faktor: 3.021, rok: 2018

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.
Trvalý link: http://hdl.handle.net/11104/0288800