Resonant Photoacoustic simultaneous detection of Methane and ethylene by means of a 1.63 m diode laser (Articolo in rivista)

Type
Label
  • Resonant Photoacoustic simultaneous detection of Methane and ethylene by means of a 1.63 m diode laser (Articolo in rivista) (literal)
Anno
  • 2002-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s003400200790 (literal)
Alternative label
  • Boschetti A., Bassi D., Jacob E., Iannotta S., Ricci L., Scotoni M. (2002)
    Resonant Photoacoustic simultaneous detection of Methane and ethylene by means of a 1.63 m diode laser
    in Applied physics. B, Lasers and optics (Print); Springer, New York (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Boschetti A., Bassi D., Jacob E., Iannotta S., Ricci L., Scotoni M. (literal)
Pagina inizio
  • 273 (literal)
Pagina fine
  • 278 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://link.springer.com/content/pdf/10.1007/s003400200790 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 74 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [ 1 ] Univ Trent, Dipartimento Fis, I-38050 Trento, Italy [ 2 ] INFM, I-38050 Trento, Italy [ 3 ] CNR, Ctr Fis Stati Aggregati, ITC, I-38050 Trento, Italy (literal)
Titolo
  • Resonant Photoacoustic simultaneous detection of Methane and ethylene by means of a 1.63 m diode laser (literal)
Abstract
  • A compact multi-component trace-gas detector based on the resonant photoacoustic technique and a NIR external cavity diode laser has been developed. It has been characterized using a mixture of ethylene and methane diluted in ambient air. A spectroscopic investigation of combination bands and overtones between 5900 and 6250 cm(-1), obtained with an IR pulsed laser photoacoustic spectrometer, allowed us to find a wavelength region where the 2v(3) overtone of CH(4) and the v(5) + v(9) combination band of C(2)H(4) show uncongested rotational lines. Using a single-mode scan of the diode laser in this region, around 6150 cm(-1), the sensitivity for the simultaneous detection of ethylene and methane is 8 ppm/mW and 40 ppm/mW respectively. Factors affecting the sensitivity and selectivity of the detection system and possible improvements suitable to reach the sub-ppm detection limit are discussed. (literal)
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