| Main Title |
Mobile source NOx monitor : hydrogen-atom direct chemiluminescence method / |
| Author |
Fontijn, Arthur. ;
Volltrauer, Hermann N. ;
Frenchu, William R.
|
| Other Authors |
|
| 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 |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| 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. |
| Abstract |
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. |
| Notes |
"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). |
