Sensitive detection of NH2 in shock tube experiments using frequency modulation spectroscopy

M. Votsmeier, S. Song, D. F. Davidson, R. K. Hanson

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Frequency modulation detection of NH2 in shock tube experiments is demonstrated with sensitivities of 0.5 ppm in a single pass and 0.25 ppm in a double pass configuration. This corresponds to a minimum detectable absorption of 0.01% and 0.005%, respectively, which represents an improvement of more than a factor of 20 when compared to conventional laser absorption detection. The feasibility of the frequency modulation detection system for quantitative absolute concentration measurements is demonstrated using CH3NH2 as a precursor for the preparation of known NH2 concentrations.

Original languageEnglish
Pages (from-to)445-453
Number of pages9
JournalInternational Journal of Chemical Kinetics
Volume31
Issue number6
DOIs
Publication statusPublished - 1999 Jan 1

Fingerprint

Shock tubes
shock tubes
Frequency modulation
frequency modulation
Shock
Spectrum Analysis
Spectroscopy
spectroscopy
Lasers
Experiments
preparation
sensitivity
configurations
lasers

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

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Sensitive detection of NH2 in shock tube experiments using frequency modulation spectroscopy. / Votsmeier, M.; Song, S.; Davidson, D. F.; Hanson, R. K.

In: International Journal of Chemical Kinetics, Vol. 31, No. 6, 01.01.1999, p. 445-453.

Research output: Contribution to journalArticle

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AU - Song, S.

AU - Davidson, D. F.

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