Main Title |
Chemiluminescence Measurement of Reactivity Weighted Ethylene-Equivalent Hydrocarbons. |
Author |
Black, Frank M. ;
High, Larry E. ;
Fontijn., Arthur ;
|
CORP Author |
Environmental Sciences Research Lab., Research Triangle Park, N.C. ;AeroChem Research Labs., Inc., Princeton. |
Year Published |
1977 |
Report Number |
EPA/600/J-77/080; |
Stock Number |
PB-278 339 |
Additional Subjects |
Hydrocarbons ;
Gas detectors ;
Exhaust emissions ;
Chemiluminescence ;
Gas chromatography ;
Design criteria ;
Performance evaluation ;
Air pollution ;
Concentration(Composition) ;
Reprints ;
Automobile exhaust ;
Air pollution detection
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-278 339 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
6p |
Abstract |
A reactive hydrocarbon analyzer (RHA), based on the chemiluminescent reaction of hydrocarbons with oxygen atoms, is used to provide a rapid indication of reactivity weighted hydrocarbon mass in automobile exhaust. Samples are reported by their ethylene-equivalent concentration--the concentration of ethylene which would give the same mass-reactivity product as the exhaust hydrocarbon mixture. These are compared to ethylene-equivalent concentrations obtained by the much more cumbersome procedure of weighting the individual sample hydrocarbons, determined by gas chromatography (GC), by their respective relative short-term photochemical reactivities, summing these results, and equating them to ethylene. Procedures are also described to eliminate a negative interference to the RHA method resultant from H2O quenching of the chemiluminescence emitter. The RHA and GC ethylene-equivalent concentrations correlate within 5%. (Copyright (c) 1977 by the American Chemical Society.) |
Supplementary Notes |
Prepared in cooperation with AeroChem Research Labs., Inc., Princeton, N.J. |
Availability Notes |
Pub. in Environmental Science and Technology, v11 n6 p597-601 Jun 77. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Chemiluminescence Measurement of Reactivity Weighted Ethylene-Equivalent Hydrocarbons. |
PUB Date Free Form |
7 Jan 77 |
Category Codes |
14B; 68A; 99A |
NTIS Prices |
Not available NTIS |
Primary Description |
600/09 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323736418 |
Origin |
NTIS |
Type |
CAT |