Results 21 to 30 of about 6,705 (186)
Microphysical properties of carbonaceous aerosol particles generated by laser ablation of a graphite target [PDF]
Atmospheric Measurement Techniques, 2015 In this work various microphysical properties including mass concentration, size distribution and morphology of aerosol particles generated by laser ablation of a high purity graphite sample were investigated in detail. Supplementary chemical analysis of
T. Ajtai +11 more
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Photoacoustics, 2020 Review sums up the application of photoacoustic and photothermal spectroscopies for the analysis and characterization of soils and soil organic matter and discusses the outlooks in this area.
Dmitry S. Volkov +2 more
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On the accuracy of aerosol photoacoustic spectrometer calibrations using absorption by ozone [PDF]
Atmospheric Measurement Techniques, 2018 In recent years, photoacoustic spectroscopy has emerged as an invaluable tool for the accurate measurement of light absorption by atmospheric aerosol. Photoacoustic instruments require calibration, which can be achieved by measuring the photoacoustic ...
N. W. Davies +8 more
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Photoacoustics, 2022 Photoacoustic spectroscopy (PAS) combines the advantages of high sensitivity, high specificity and zero background, which is very suitable for trace gas detection.
Yonggang Yin +4 more
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Source apportionment of carbonaceous chemical species to fossil fuel combustion, biomass burning and biogenic emissions by a coupled radiocarbon–levoglucosan marker method [PDF]
Atmospheric Chemistry and Physics, 2017 An intensive aerosol measurement and sample collection campaign was conducted in central Budapest in a mild winter for 2 weeks. The online instruments included an FDMS-TEOM, RT-OC/EC analyser, DMPS, gas pollutant analysers and meteorological sensors ...
I. Salma +11 more
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Dual-comb quartz-enhanced photoacoustic spectroscopy
Photoacoustics, 2022 Photoacoustic spectroscopy (PAS) using two optical combs is a new-born technique, offering appealing features, including broad optical bandwidths, high resolutions, fast acquisition speeds, and wavelength-independent photoacoustic detection, for chemical
Xinyi Ren +6 more
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Photoacoustics, 2018 In a carrier flow based permeation system the measured permeation curve is the convolution of two processes: the intrinsic permeation process and the transfer of the permeated molecules through the measuring system.
Zoltán Bozóki +4 more
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Photoacoustic Spectroscopy [PDF]
, 2020 In its broadest sense, optical spectroscopy can be defined as the study of theinteraction of light with matter. Optical spectroscopy is invaluable in studies on cleanmedia but there are several instances where it is inadequate. In order to solve this problem,several techniques were developed, but these were applicable to only a small category ...
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Recent Advances in QEPAS and QEPTS Based Trace Gas Sensing: A Review
Frontiers in Physics, 2020 This invited review paper summarizes and discusses developments of QTF based state-of-the-art quartz-enhanced photoacoustic spectroscopy (QEPAS) and quartz-enhanced photothermal spectroscopy (QEPTS) gas sensing techniques over the past 3 years.
Yufei Ma
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Excessive alcohol consumption induces methane production in humans and rats
Scientific Reports, 2017 Various studies have established the possibility of non-bacterial methane (CH4) generation in oxido-reductive stress conditions in plants and animals.
E. Tuboly +12 more
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