Improved analyzer for nitrogen dioxide by laser-induced fluorescence technique

Jun Matsumoto, Yoshizumi Kajii

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)4847-4851
Number of pages5
JournalAtmospheric Environment
Volume37
Issue number34
DOIs
Publication statusPublished - 2003 Nov
Externally publishedYes

Fingerprint

laser induced fluorescence
Scrubbers
nitrogen dioxide
Fluorescence
Nitrogen
wavelength
Wavelength
Laser excitation
Lasers
Pulsed lasers
Hydroxyapatite
Titanium dioxide
laser
measuring
detection
alignment
titanium dioxide
particle

Keywords

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

ASJC Scopus subject areas

  • Atmospheric Science
  • Environmental Science(all)
  • Pollution

Cite this

Improved analyzer for nitrogen dioxide by laser-induced fluorescence technique. / Matsumoto, Jun; Kajii, Yoshizumi.

In: Atmospheric Environment, Vol. 37, No. 34, 11.2003, p. 4847-4851.

Research output: Contribution to journalArticle

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