Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Evaluation of Modifications to Extraction Procedures Used in Analysis of Environmental Samples from Superfund Sites.
Author Valkenburg, C. A. ; Munslow, W. D. ; Butler, L. C. ;
CORP Author Lockheed Engineering and Sciences Co., Inc., Las Vegas, NV.;Environmental Protection Agency, Las Vegas, NV.
Publisher c1989
Year Published 1989
Report Number EPA-68-03-3249; EPA/600/J-89/061;
Stock Number PB90-103516
Additional Subjects Chemical analysis ; Waste disposal ; Site surveys ; Solvent extraction ; Chloromethanes ; Continuous sampling ; Experimental design ; Revisions ; Tables(Data) ; Concentration(Composition) ; pH ; Gas chromatography ; Mass spectroscopy ; Reprints ; Superfund program ; Target Compound List
Library Call Number Additional Info Location Last
NTIS  PB90-103516 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 03/10/1990
Collation 9p
Recoveries from an aqueous sample of the semi-volatile analytes listed on the EPA Target Compound List are compared using 6 different methylene chloride extraction procedures. Four experimental designs incorporating a continuous extraction apparatus are evaluated, and 2 experimental designs using separatory funnel methods are tested. In addition, 2 concentration procedures are compared, and the loss of analytes associated with both extraction and concentration procedures are determined. These studies indicate that the most efficient and economical technique for the extraction of these compounds from an aqueous matrix is a single continuous extraction procedure performed at 2 pH.