Record Display for the EPA National Library Catalog

RECORD NUMBER: 305 OF 309

OLS Field Name OLS Field Data
Main Title X-Ray Fluorescence Spectrometer for Airborne Particulate Monitoring.
Author Gouldin, Fred S. ; Jaklevi, Joseph M. ;
CORP Author California Univ., Berkeley. Lawrence Berkeley Lab.
Year Published 1973
Report Number EPA-IAG-0089(D)/A; R2-73-182;
Stock Number PB-225 038
Additional Subjects ( Particles ; X ray analysis) ; Chemical analysis ; Filtration ; Spectrochemical analysis ; Metals ; Data reduction ; Computer programming ; Spectrum analysis ; Aerosols ; Laboratory equipment ; Design ; X ray fluorescence analysis
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=2000X8AP.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-225 038 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 69p
Abstract
An automated system for determining the elemental composition of ambient air has been developed. Airborne particulate matter is collected on up to 36 membrane filters which are sequentially introduced into the sample stream. The duration for the collection period can be adjusted to range from 1 to 24 hours. In the analysis station the elemental composition of the collected particulate matter is determined using an energy dispersive X-ray spectrometer. Each filter is separately analyzed using each of three secondary fluorescers in order to optimize the sensitivity for a wide range of elements which have atomic numbers greater than 12. After a brief analysis period the results for each filter are printed out on a teletypewriter and written on magnetic tape. Up to 36 filters can be accommodated without operator attention. (Author)