Record Display for the EPA National Library Catalog


Main Title Efficiency of Dioxin Recovery from Fly Ash Samples during Extraction and Cleanup Process, March 1989.
Author Finkel, J. M. ; James, R. H. ; Baughman, K. W. ;
CORP Author Southern Research Inst., Birmingham, AL.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher Mar 89
Year Published 1989
Report Number EPA-68-02-4442; EPA/600/3-90/010;
Stock Number PB90-183393
Additional Subjects Fly ash ; Hazardous materials ; Solvent extraction ; Solid waste disposal ; Chemical analysis ; Gas chromatography ; Mass spectroscopy ; Performance evaluation ; Carbon 14 ; Standards ; Sampling ; Materials recovery ; Dioxins ; Incineration ; Cleanup operations ; Municipal wastes ; Dibenzodioxin/tetrachloro ; Dibenzodioxin/octachloro ; Tracer studies ; Waste management
Library Call Number Additional Info Location Last
NTIS  PB90-183393 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 49p
The work supported Environmental Monitoring Systems Laboratory, U.S. Environmental Protection Agency in its effort to monitor the hazardous composition, if any, of fly ash from various types of incinerators using different types of combustible materials. The analytical determination of dioxins in environmental samples in the parts per billion, trillion, and quadrillion levels requires meticulous, time-consuming, and very complex sample preparation and analysis procedures. A major part of the task was devoted to the evaluation of various extraction techniques of fly ash and cleanup of sample extracts by column chromatography. Several chromatographic media and eluting solvents were investigated. Each step in the sample preparation was evaluated by using 14C-radiolabeled 2,3,7,8-tetrachlorodibenzo-p-dioxin and octochlorodibenzo-p-dioxin as a tracer. Radiolabeled dioxin allows the analyst to stop and evaluate each step of the procedure, each extract, and each column eluate fraction by liquid scintillation computing. To validate the radiometric assay, dioxin was confirmed by gas chromatography/mass spectrometry. The report contains recovery data of spiked 2,3,7,8-tetrachlorodibenzo-p-dioxin and octochlorodibenzo-p-dioxin in carbon-free fly ash and fly ash containing from 0.1% to 10% carbon.