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Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 36,
  • Issue 5,
  • pp. 562-565
  • (1982)

A Study of Measurement Interference in the Optoacoustic Detection of NO2 by Argon-Ion Laser Excitation

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Abstract

Optoacoustic measurements of NO<sub>2</sub> excited by an Ar<sup>+</sup> laser were performed in the presence of NO, N<sub>2</sub>, H<sub>2</sub>O, and O<sub>2</sub> matrix gases. Identical sensitivities were measured in all matrix gases except O<sub>2</sub> where energy transfer from NO<sub>2</sub> to the metastable O<sub>2</sub>(<sup>1</sup>Δ<sub>g</sub>) state resulted in a dramatic decrease in sensitivity.

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