[HTML][HTML] Photochemical reactions in the urban air: Recent understandings of radical chemistry

Y Sadanaga, J Matsumoto, Y Kajii - Journal of Photochemistry and …, 2003 - Elsevier
In this review article, recent understandings of the urban atmosphere are briefly presented,
focusing on NOx (NO and NO2), NO3 and HOx (OH and HO2), which are the key species for …

Enhancement of NO2 gas sensing response based on ordered mesoporous Fe-doped In2O3

J Zhao, T Yang, Y Liu, Z Wang, X Li, Y Sun, Y Du… - Sensors and Actuators B …, 2014 - Elsevier
Abstract Ordered mesoporous Fe-In 2 O 3 has been synthesized via a nanocasting route
using the three-dimensional (3D) cubic mesoporous KIT-6 silica as a hard template. Various …

[HTML][HTML] Compact quartz-enhanced photoacoustic sensor for ppb-level ambient NO2 detection by use of a high-power laser diode and a grooved tuning fork

S Li, J Lu, Z Shang, X Zeng, Y Yuan, H Wu, Y Pan… - Photoacoustics, 2022 - Elsevier
A compact quartz-enhanced photoacoustic sensor for ppb-level ambient NO 2 detection is
demonstrated, in which a high-power blue laser diode module with a small divergence …

Ppb-level QEPAS NO2 sensor by use of electrical modulation cancellation method with a high power blue LED

H Zheng, L Dong, X Yin, X Liu, H Wu, L Zhang… - Sensors and Actuators B …, 2015 - Elsevier
A novel electrical modulation cancellation method (E-MOCAM) is proposed to suppress the
background noise in the case of the excitation light source with a poor beam quality. For its …

Process analytical chemistry

J Workman, M Koch, DJ Veltkamp - Analytical chemistry, 2003 - ACS Publications
This review of process analytical chemistry is part of a series of review articles published in
2001 (A1) 1999 (A2), 1995 (A3), and 1993 (A4). This review covers the period from March …

Incoherent broadband cavity enhanced absorption spectroscopy for in situ measurements of NO2 with a blue light emitting diode

T Wu, W Zhao, W Chen, W Zhang, X Gao - Applied Physics B, 2009 - Springer
We report on the development of Incoherent Broadband Cavity Enhanced Absorption
Spectroscopy (IBBCEAS) using a blue light emitting diode (LED) for the detection of NO 2 in …

Measurement of atmospheric NO2 by pulsed cavity ring‐down spectroscopy

HD Osthoff, SS Brown, TB Ryerson… - Journal of …, 2006 - Wiley Online Library
We have constructed a pulsed cavity ring‐down spectrometer (CARDS) for simultaneous
measurements of nitrogen dioxide (NO2), the nitrate radical (NO3), and dinitrogen pentoxide …

Intercomparison of measurements of NO2 concentrations in the atmosphere simulation chamber SAPHIR during the NO3Comp campaign

H Fuchs, SM Ball, B Bohn, T Brauers… - Atmospheric …, 2010 - amt.copernicus.org
NO 2 concentrations were measured by various instruments during the NO3Comp campaign
at the atmosphere simulation chamber SAPHIR at Forschungszentrum Jülich, Germany, in …

Broadband ultrafast-laser-absorption measurements of NO2 absorption cross-sections from 430 to 500 nm at high temperatures behind shock waves

RJ Tancin, V Radhakrishna, CS Goldenstein - Journal of Quantitative …, 2024 - Elsevier
This work presents broadband spectrally resolved measurements of the absorption cross-
section of NO 2 from approximately 430 to 500 or 580 nm, depending on temperature, with a …

Laser-induced fluorescence detection of atmospheric NO2 with a commercial diode laser and a supersonic expansion

PA Cleary, PJ Wooldridge, RC Cohen - Applied Optics, 2002 - opg.optica.org
Routine observations of atmospheric NO_2 at concentrations ranging from 0.1 to 100 parts
per billion are needed for air quality monitoring and for the evaluation of photochemical …