Record Display for the EPA National Library Catalog


Main Title Evaluation of a Sampling and Analysis Method for Determination of Polyhalogenated Dibenzo-p-Dioxins and Dibenzofurans in Ambient Air.
Author Harless, R. L. ; Lewis, R. G. ; McDaniel, D. D. ; Gibson, J. F. ; Dupuy, A. E. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. ;National Aeronautics and Space Administration, Bay Saint Louis, MS. John C. Stennis Space Center.
Publisher 1992
Year Published 1992
Report Number EPA/600/A-93/203;
Stock Number PB93-229193
Additional Subjects Dioxin ; Benzofurans ; Air pollution sampling ; Air samplers ; Combustion production ; Oxygen heterocyclic compounds ; Chemical analysis ; Incinerators ; Waste recycling centers ; Reprints ; Volatile organic compounds
Library Call Number Additional Info Location Last
NTIS  PB93-229193 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
General Metals Works PS-1 PUF air samplers and an analytical method based on high resolution gas chromatography - high resolution mass spectrometry (HRGC-HRMS) were evaluated for determination of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDDs/PCDFs), polybrominated dibenz-p-dioxins and dibenzofurans (PBDDs/PBDFs) and bromo/chloro dibenzo-p-dioxins and dibenzofurans (BCDDs/BCDFs) in ambient air. Dilute solutions of these compounds and (13)C-1,2,3,4-TCDD were used to spike the filters of PS-1 air samplers which were then operated 24 hrs to sample 350-400 cubic meter ambient air. After sampling, each quartz-fiber filter and polyurethane foam (PUF) were spiked with (13)C-12-labeled PCDD, PCDF, PBDD, and PBDF internal standards before separate Soxhlet extractions with benzene. The extracts were subjected to an acid/base clean-up procedure followed by clean-up on microcolumns of silica gel, alumina, and carbon and then analyzed by HRGC-HRMS. Results derived from the study indicated the PS-1 ambient air samplers and the analytical procedures were very efficient and that pg/cubic meter and sub-pg/cubic meter levels of total PCDDs/PCDFs, PBDDs/PBDFs, BCDDs/BCDFs, and 2,3,7,8-substituted congeners could be accurately measured.