J. Phys. IV France 01 (1991) C7-477-C7-480
PULSED LASER PHOTOACOUSTIC SPECTROSCOPY OF GASESP. VUJKOVIC CVIJIN1, M. TERZIC2, D.D. MARKUSEV1, A.Dj. PETROVIC1, J. JOVANOVIC-KUREPA1 and G.H. ATKINSON3
1 Institute of Physics, P.O. Box 57, YU-11001 Belgrade, Yugoslavia
2 University of Novi Sad, Institute of Physics, P.O. Box 224, YU-21001 Novi Sad, Yugoslavia
3 Department of Chemistry, University of Arizona, Tucson, Arizona 85721, USA
Pulsed laser photoacoustic spectrometer based on CO2 laser excitation is reported. Advantage has been taken of the temporal resolution of the gas absorption signal relative to that of the background. Detection sensitivity of 1.5 ppbv ethyene (4.9x10-8cm-1) is achieved.
© EDP Sciences 1991