Trace nitric oxide detection by CO-laser photoacoustic spectroscopy

Authors

Raymund Sarmiento ⋅ PH Department of Physics, University of San Carlos
Dioscoro I. Villagonzalo ⋅ PH Department of Physics, University of San Carlos
Frans J. M. Harren ⋅ NL University of Nijmegen, The Netherlands

Abstract

Absorption coefficients of nitric oxide (NO) were measured between 1750 to 2000 cm^-1 (56 lines) using a CO-laser photoacoustic spectroscopy setup. Most have errors of around 10% or less. These results are close compared to the Hitran database for NO. Significant deviations are due to interference of H₂O in our setup. The absorption coefficients for five (5) lines used in the multicomponent analysis were tested for calibration of the setup. The calculated concentrations are very close to the set concentrations although it exhibits a slight offset.

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Issue

2004: Proceedings of the 22nd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2004-1G-03

Section

Instrumentation Physics

Published

2004-10-25

How to Cite

[1]

R Sarmiento, DI Villagonzalo, and FJM Harren, Trace nitric oxide detection by CO-laser photoacoustic spectroscopy, Proceedings of the Samahang Pisika ng Pilipinas 22, SPP-2004-1G-03 (2004). URL: https://proceedings.spp-online.org/article/view/SPP-2004-1G-03.