Record Display for the EPA National Library Catalog

RECORD NUMBER: 288 OF 295

Main Title X-Ray Fluorescence Analysis of Filter-Collected Aerosol Particles.
Author Dzubay, Thomas G. ; Rickel, Dwight G. ;
CORP Author Northrop Services, Inc., Research Triangle Park, NC.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Year Published 1978
Report Number EPA/600/J-78/120;
Stock Number PB-298 518
Additional Subjects Gas analysis ; X ray fluorescence ; Particles ; Laboratory equipment ; Air pollution ; X ray analysis ; Aerosols ; Chemical analysis ; Sampling ; Air filters ; Calibrating ; Industrial hygiene ; Air pollution detection ; Indoor air pollution ; Occupational safety and health ; Reprints
Holdings
Library Call Number Additional Info Location Last
Modified		 Checkout
Status
NTIS  PB-298 518 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
Abstract
X-ray fluorescence (XRF) has become an effective technique for determining the elemental content of aerosol samples. For quantitative analysis, the aerosol particles must be collected as uniform deposits on the surface of Teflon membrane filters. An energy dispersive XRF spectrometer having a pulsed x-ray source that excites Ti, Mo, and Sm secondary targets has sufficiently low minimum detectable limits to enable 20-25 different elements to be detected and analyzed in atmospheric aerosol samples. For quantitative analysis using an energy dispersive spectrometer, the x-ray spectra are analyzed using a least squares procedure to eliminate interferences. Thin film standards are used to calibrate the spectrometer. Applications include the XRF analysis of 34,000 samples from the Regional Air Pollution Study in St. Louis.