CO2 laser absorption cross-section data are reported for acrolein, styrene, ethyl acrylate, trichloroethylene, vinyl bromide, and vinylidene chloride. These data indicate that sub parts per billion level, interference-free detection limits should be possible for these compounds by the CO2 laser photoacoustic technique. Photoacoustic detectabilities below 40 ppb should be possible for these compounds in the presence of ambient air concentrations of water vapor and other anticipated interferences. These compounds are also found not to be important interferences in the detection of toxic hydrazine-based rocket fuels by CO2 laser spectroscopic techniques.
© 1982 Optical Society of America
G. L. Loper, G. R. Sasaki, and M. A. Stamps, "Carbon dioxide laser absorption spectra of toxic industrial compounds," Appl. Opt. 21, 1648-1653 (1982)