Improved analyzer for nitrogen dioxide by laser-induced fluorescence technique

Jun Matsumoto; Yoshizumi Kajii

doi:10.1016/j.atmosenv.2003.08.023

Improved analyzer for nitrogen dioxide by laser-induced fluorescence technique

Jun Matsumoto, Yoshizumi Kajii

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	4847-4851
Number of pages	5
Journal	Atmospheric Environment
Volume	37
Issue number	34
DOIs	https://doi.org/10.1016/j.atmosenv.2003.08.023
Publication status	Published - 2003 Nov
Externally published	Yes

Keywords

Diffusion scrubber
Diode-pumped solid-state laser
Interference by particles
Single-pass alignment
Single-wavelength excitation LIF

ASJC Scopus subject areas

Environmental Science(all)
Atmospheric Science

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10.1016/j.atmosenv.2003.08.023

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title = "Improved analyzer for nitrogen dioxide by laser-induced fluorescence technique",

abstract = "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.",

keywords = "Diffusion scrubber, Diode-pumped solid-state laser, Interference by particles, Single-pass alignment, Single-wavelength excitation LIF",

author = "Jun Matsumoto and Yoshizumi Kajii",

year = "2003",

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doi = "10.1016/j.atmosenv.2003.08.023",

language = "English",

volume = "37",

pages = "4847--4851",

journal = "Atmospheric Environment",

issn = "1352-2310",

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TY - JOUR

T1 - Improved analyzer for nitrogen dioxide by laser-induced fluorescence technique

AU - Matsumoto, Jun

AU - Kajii, Yoshizumi

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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