R. Sarmiento, I.E. Santosa, S.T. Persijn, L.J.J. Laarhoven, F.J.M. Harren
CO-laser based photoacoustic detection of nitric oxide has been theoretically and experimentally investigated. Using a model based on rate equations the influence of H 2O vapor on NO relaxation was determined. In addition, NO absorption coefficients were measured and they showed a good correspondence with calculated values from Hitran database. The high laser power in combination with a sensitive photoacoustic cell resulted in a detection limit of 1 ppbv (1:10 9).
PhysicsDepartment, University of San Carlos, Cebu City 6000, Philippines; Physics, Department, Gadha Mada University, Yogyakarta, Indonesia; Life Science Trace Gas Facility, Molecule and Laser Physics, Radboud University, 6525 ED Nijmegen, Toernooiveld 1, Netherlands
