Record Display for the EPA National Library Catalog

RECORD NUMBER: 7 OF 13

OLS Field Name OLS Field Data
Main Title Elemental Composition of Sized Particles Emitted from Stationary Sources.
Author Knapp, Kenneth T. ;
CORP Author Environmental Sciences Research Lab., Research Triangle Park, NC. Emissions Measurement and Characterization Div.
Year Published 1983
Report Number EPA-600/D-83-012;
Stock Number PB83-171272
Additional Subjects Chemical analysis ; Particles ; Air pollution ; Infrared spectroscopy ; Particle size ; Separation ; X ray fluorescence ; Impactors ; Cyclone separators ; Fourier transform spectroscopy
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB83-171272 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 18p
Abstract
This paper discusses several approaches for obtaining the elemental and, in a few cases, inorganic compound identification in sized particles. The elemental analyses are done by wavelength dispersion x-ray fluorescence (WXRF). Fourier Transform infrared is being used for inorganic compound determination. The WXRF technique gives the best results for particles that are uniformly deposited on lightweight filter media. The standard impactors do not collect the particles in this manner and, therefore, some sample preparation or transfer is needed. The sample preparation and transfer techniques used in this research are also described. In addition, an in-stack impactor developed to collect the sized particles as a uniform deposit will be discussed. The results of the chemical analyses from sized particles collected from various types of industries will be presented.