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 | |
| Publication status | Published - 2003 Nov |
| Externally published | Yes |
Fingerprint
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 journal › Article
}
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
UR - http://www.scopus.com/inward/record.url?scp=0141727537&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0141727537&partnerID=8YFLogxK
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 -