Main Title |
Chemical analysis of stationary source particulate pollutants by micro-Raman spectroscopy : interim report / |
Author |
Etz, Edgar S. ;
Rosasco, Gregory J. ;
Heinrich, Kurt F. J.
|
Other Authors |
|
CORP Author |
National Bureau of Standards, Washington, DC. Analytical Chemistry Div.;Environmental Sciences Research Lab., Research Triangle Park, NC. |
Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, Environmental Sciences Research Laboratory, |
Year Published |
1978 |
Report Number |
EPA-600/2-78-193 |
Stock Number |
PB-286 941 |
OCLC Number |
42701625 |
Subjects |
Air--Pollution--Measurement ;
Raman spectroscopy ;
Particles--Measurement
|
Additional Subjects |
Gas analysis ;
Particles ;
Raman spectroscopy ;
Chemical analysis ;
Sulfates ;
Inorganic nitrates ;
Carbonates ;
Oxides ;
Electric power plants ;
Industrial wastes ;
Combustion products ;
Vanadium oxides ;
Fly ash ;
Design criteria ;
Performance evaluation ;
Air pollution ;
Stationary sources ;
Coal fired power plants ;
Oil fired power plants ;
Air pollution detection
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 600-2-78-193 |
|
Headquarters Library/Washington,DC |
07/08/2014 |
EKBD |
EPA-600/2-78-193 |
|
Research Triangle Park Library/RTP, NC |
09/07/2001 |
ELBD ARCHIVE |
EPA 600-2-78-193 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ESAD |
EPA 600-2-78-193 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB-286 941 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
vii, 38 p. : ill. ; 28 cm. |
Abstract |
Analytical capability to identify the principal molecular species present in microparticles is demonstrated on the basis of Raman spectra of selected compounds and materials. Among the inorganic species studied are sulfates, nitrates, carbonates and oxides, for which Raman spectra are discussed for single, solid particles of size down to 1 micrometer. The method of micro-Raman analysis is applied to the molecular characterization of individual microparticles from power plant emissions. Raman spectra have been obtained from microparticles of oil-fired power plant emissions collected by the EPA with cascade impaction samplers. Vanadium pentoxide, V2O5, has been identified as a major component of microparticles present in such samples. The presence of certain other vanadium containing species such as vanadyl, VO(+2), and ortho-vanadate, VO4(-3), is not indicated from the results of these measurements. Other Raman spectra show evidence of crystalline sulfate, SO4(-2), as a species present in major proportions. However, the exact nature of the associated cation specie(s) has not been determined. Many of the spectra obtained from fly ash particles show Raman bands characteristic of polycrystalline graphite apparently due to the presence of carbonaceous material associated with the particles. |
Notes |
"EPA-600/2-78-193." EPA IAG-D6-F012; EPA project officer: John Nader. References: p. 36-37. |