||DLR Jet-REMPI as a Continuous Emissions Monitor: Measurements of Chlorinated Dibenzodioxins.
Oser, H. ;
Thanner, R. ;
Grotheer, H. H. ;
Gullett, B. K. ;
French, N. B. ;
||Acurex Environmental Corp., Research Triangle Park, NC. ;Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V., Stuttgart (Germany, F.R.). Inst. of Physical Chemistry of Combustion. ;Sky (Plus), Oakland, CA.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Air pollution monitors ;
Polychlorinated dibenzodioxins ;
Chlorinated aromatic hydrocarbons ;
Combustion products ;
Air pollution sampling ;
Flue gases ;
Vapor phases ;
Mass spectroscopy ;
Test methods ;
Continuous sampling ;
Combustion kinetics ;
Polychlorinated dibenzofurans ;
REMPI(Resonance Enhanced Multi-Photon Ionization)
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
REMPI (Resonance Enhanced Multi-Photon Ionization) mass spectrometer systems are known for high selectivity, good on-line capabilities, and sensitivities to about 1 ppbv. In this paper, the authors present new data showing DLR Jet -RMPI measurements of tri- and tetra-chlorinated dibenzodioxins. The authors believe these are the first data of their kind, and note their significance in demonstrating that single-color (1 wavelength) Jet-REMPI can measure PCDD congeners at this level of chlorination. The current instrument sensitivity is in the low (60) pptv region, and further work will focus on improving sensitivity by at least 1 or 2 orders of magnitude.