TY - JOUR
T1 - Improved analyzer for nitrogen dioxide by laser-induced fluorescence technique
AU - Matsumoto, Jun
AU - Kajii, Yoshizumi
N1 - Funding Information:
We are grateful to Prof. Akimoto (Frontier Research System for Global Change), Dr. Tanimoto (National Institute for Environmental Studies, Japan) and all of RISOTTO2000 measurement team for their advice and practical help in the campaign. We also thank S. Tanaka (Keio University) and Y. Komazaki (RCAST, the Univ. of Tokyo) for their great assistance in the application of the cylindrical scrubber tube. This work was supported by funding from the Core Research for Evolutional Science and Technology (CREST) program by Japan Science and Technology Corporation (JST).
PY - 2003/11
Y1 - 2003/11
N2 - A compact, fast-response instrument for measuring atmospheric NO 2 by single-wavelength excitation laser-induced fluorescence (LIF) technique was improved. A single-pass alignment of a more powerful, pulsed laser was utilized to realize the pptv (=10-12 by volume) of the limit of detection (LOD). As a result, the LOD reached 1.8pptv for 1-min averaging (S/N=1). To determine the instrumental zero accurately, interference by particles was cancelled out utilizing an NO2 scrubber tube coated with a mixture of titanium dioxide (TiO2) and hydroxyapatite. Consequently, it was confirmed that the combination of the improved single-wavelength LIF instrument with the scrubber was reasonable for measuring atmospheric NO2.
AB - A compact, fast-response instrument for measuring atmospheric NO 2 by single-wavelength excitation laser-induced fluorescence (LIF) technique was improved. A single-pass alignment of a more powerful, pulsed laser was utilized to realize the pptv (=10-12 by volume) of the limit of detection (LOD). As a result, the LOD reached 1.8pptv for 1-min averaging (S/N=1). To determine the instrumental zero accurately, interference by particles was cancelled out utilizing an NO2 scrubber tube coated with a mixture of titanium dioxide (TiO2) and hydroxyapatite. Consequently, it was confirmed that the combination of the improved single-wavelength LIF instrument with the scrubber was reasonable for measuring atmospheric NO2.
KW - Diffusion scrubber
KW - Diode-pumped solid-state laser
KW - Interference by particles
KW - Single-pass alignment
KW - Single-wavelength excitation LIF
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U2 - 10.1016/j.atmosenv.2003.08.023
DO - 10.1016/j.atmosenv.2003.08.023
M3 - Article
AN - SCOPUS:0141727537
VL - 37
SP - 4847
EP - 4851
JO - Atmospheric Environment
JF - Atmospheric Environment
SN - 1352-2310
IS - 34
ER -