Record Display for the EPA National Library Catalog


Main Title Mobile source NOx monitor : hydrogen-atom direct chemiluminescence method /
Author Fontijn, Arthur. ; Volltrauer, Hermann N. ; Frenchu, William R.
Other Authors
Author Title of a Work
Volltrauer, Hermann N.
Frenchu, William R.
Black, Frank M.
CORP Author AeroChem Research Labs., Inc., Princeton, NJ.;Environmental Sciences Research Lab., Research Triangle Park, NC. Emissions Measurement and Characterization Div.
Publisher Environmental Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1979
Report Number EPA-600/2-79-120; 68-02-2744
Stock Number PB80-102759
OCLC Number 32378053
Subjects Chemiluminescence ; Waste gases--Measurement ; Nitrogen oxides--Measurement
Additional Subjects Air pollution ; Monitors ; Nitrogen oxides ; Chemiluminescence ; Exhaust emissions ; Motor vehicles ; Concentration(Composition) ; Laboratory equipment ; Performance evaluation ; Design ; Hydrogen atoms ; Air pollution detection
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  EPA-600/2-79-120 Region 1 Library/Boston,MA 05/25/2016
EJED  EPA-600/2-79-120 OCSPP Chemical Library/Washington,DC 04/28/1995
EKBD  EPA-600/2-79-120 Research Triangle Park Library/RTP, NC 07/04/2003
ELBD ARCHIVE EPA 600-2-79-120 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ESAD  EPA 600-2-79-120 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB80-102759 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 35 pages : illustrations, plans ; 28 cm.
An analyzer was developed for measuring motor vehicle NOx (NO and NO2) emissions based on the chemiluminescence reaction of NO and NO2 with hydrogen atoms. This eliminated the need for an NO2 to NO converter as required with ozone chemiluminescence for NOx analysis. The hydrogen-atom source is based on the thermal dissociation of molecular hydrogen on a hot (approximately 1900C) tungsten filament. The unit has linear response to NOx over a concentration range from 4 ppm to greater than 3000 ppm. No interferences were observed with H2O, CO, CO2, toluene, isopentane, NH3, HCN, CH3NH2, or H2 at concentrations encountered in raw automobile exhaust. Oxygen and ethylene caused minor interferences which should be inconsequential in actual application.
"EPA-600/2-79-120." "July 1979." "This report was submitted in fulfillment of contract no. 68-02- 2744 by AeroChem Research Laboratories, Inc., under the sponsorship of the U.S. Environmental Protection Agency." "Contract no. 68-02-2744." Includes bibliographical references (pages 33-34).