Record Display for the EPA National Library Catalog


Main Title Development of a Breadboard CO2 Laser Photoacoustic Toxic Vapor Monitor.
Author Loper, G. L. ; Corbin, R. C. ; Takayama, M. L. ; Clifton, R. A. ; Gelbwachs, J. A. ;
CORP Author Aerospace Corp., El Segundo, CA.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Year Published 1988
Report Number EPA-68-03-3171; EPA/600/7-88/011;
Stock Number PB88-224332
Additional Subjects Carbon dioxide lasers ; Chemical analysis ; Hydrazine ; Vapors ; Chloromethanes ; Methacrylates ; Methacrylonitrile ; Bromoalkanes ; Acrylonitriles ; Allyl alcohols ; Hazardous materials ; Air pollution monitors ; Hazardous wastes ; Volatile organic compounds ; Toxic substances ; Threshold limit values ; Photoacoustic effects ; Carbonyl fluoride ; Air samplers ; Methane/brono ; Methane/chloro
Library Call Number Additional Info Location Last
NTIS  PB88-224332 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 113p
The report describes the development of a breadboard version of a CO2 laser photoacoustic (LPA) detector. The CO2 LPA technique has been demonstrated to be capable of detecting, with high specificity, a variety of toxic compounds at low parts-per-billion (ppb) levels in multicomponent air samples. The technique can be used for monitoring trace levels of various hazardous compounds in ambient air samples. A key achievement during the program was determination of CO2 laser absorption cross-section data for seven compounds of EPA concern that are volatile constituents of hazardous chemical waste. The data shows that the LPA method can detect these compounds in ambient air at levels well below their most stringent threshold limit values.