Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Selection of a suitable extraction method for woodsmoke-impacted air particles /
Author Williams, R. ; Pasley, T. ; Warren, S. ; Zweidinger, R. ; Watts, R.
Other Authors
Author Title of a Work
Pasley, T.
Warren, S.
Zqeidinger, R.
Watts, R.
Stead, A.
Claxton, L.
CORP Author Environmental Health Research and Testing, Inc., Research Triangle Park, NC.;Health Effects Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Health Effects Research Laboratory,
Year Published 1988
Report Number EPA/600/J-88/316; EPA-68-02-4456
Stock Number PB89-207294
Additional Subjects Air pollution ; Chemical analysis ; Mutagens ; Wood ; Combustion products ; Reprints ; Air sampling ; Particulates
Library Call Number Additional Info Location Last
NTIS  PB89-207294 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 20 pages ; 28 cm
Extraction methods were evaluated for recovery of mutagneic activity from woodsmoke-impacted air particles. Soxhlet and sonication techniques were utilized with a variety of solvents to ascertain the effect of solvent choice, extraction methods, or dissolved gases in extraction solvents on the recovery of mutagenicity. Sonication extraction gave slightly less mass recovery than the Soxhlet method. Methanol extracted more mass than the other solvents with dichloromethane recovering the least. Dissolved gases were not found to have any effect, while mutagenicity was shown to be dependent upon solvent and extraction method. Soxhlet extraction with acetone and toluene/ethanol yielded the highest recovery of mutagenic activity; however, results indicated a solvent/solute interaction which chemically altered one or more extract components. Extraction employing dichloromethane and sonication was selected as a suitable method since this treatment appeared not to alter extracted compounds, and good recovery of mutagenicity was obtained. (Copyright (c) 1988 Gordon and Breach Science Publishers Inc.)
Includes bibliographical references. "Reprint article published in International Journal of Environmental Analytical Chemistry, vol. 34, pp. 137-154, 1988." Microfiche.