| Main Title |
Evaluation of a continuous colorimetric method for measurement of nitrogen dioxide in ambient air / |
| Author |
Margeson, John H. ;
Fuerst., Robert G.
|
| Other Authors |
|
| CORP Author |
Environmental Protection Agency, Research Triangle Park, N.C. |
| Publisher |
Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1975 |
| Report Number |
EPA-650/4-75-022 |
| Stock Number |
PB-243 462 |
| OCLC Number |
15129224 |
| Subjects |
Air--Pollution--Measurement ;
Nitrogen dioxide ;
Colorimetry
|
| Additional Subjects |
Nitrogen dioxide ;
Colorimetric analysis ;
Air pollution detection ;
Gas analysis ;
Gas detectors ;
Calibrating ;
Continuous sampling ;
Gas sampling
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 650-4-75-022 |
|
Headquarters Library/Washington,DC |
01/06/2015 |
| ELBD ARCHIVE |
EPA 650-4-75-022 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| NTIS |
PB-243 462 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
42 p. : ill. ; 28 cm. |
| Abstract |
A continuous colorimetric procedure for the measurement of nitrogendioxide in ambient air was evaluated. The evaluation included laboratory experiments, using two different azo-dye-forming absorbing solutions in a Technicon instrument, to test the reliability of calibration techniques. Other procedures that are important in the use of the method were evaluated, and a literature search was conducted to identify possible interferents. The results show that static calibration is unreliable; dynamic calibration using a reliable NO2-generation system is required. Ozone was found to be a significant negative interferent. A detailed method write-up, based on dynamic calibration specifications, was prepared to describe the use of the continuous colorimetric procedure. |
| Notes |
"April 1975." |
| Place Published |
Research Triangle Park, N.C. |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Research and Development.; Quality Assurance and Environmental Monitoring Laboratory (Research Triangle Park, N.C.) |
| Title Ser Add Ent |
EPA ; 650/4-75-022. |
| PUB Date Free Form |
1975 |
| Series Title Traced |
EPA ; 650/4-75-022 |
| Series Title Untraced |
EPA ; 650/4-75-022 |
| NTIS Prices |
PC A03/MF A01 |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20130514105801 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01258cam 2200313Ia 45020 |
