Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Analytical Methods for Hazardous Organics in Liquid Wastes from Coal Gasification and Liquefaction Processes.
Author Yen, T. F. ; Tang, J. I. S. ; Wasburne, Martha ; Cohanim, Shoreh ;
CORP Author University of Southern California, Los Angeles.;Environmental Monitoring and Support Lab., Cincinnati, OH.
Year Published 1982
Report Number EPA-R-806167; EPA-600/4-82-038;
Stock Number PB82-208273
Additional Subjects Water analysis ; Coal gasification ; Organic compounds ; Chemical analysis ; Separation ; Gas chromatography ; Mass spectroscopy ; Industrial wastes ; Adsorption ; Water pollution detection ; Coal liquefaction
Library Call Number Additional Info Location Last
NTIS  PB82-208273 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 98p
This study was conducted by the University of Southern California group to provide methods for the analysis of coal liquefaction wastes from coal conversion processing plants. Several methods of preliminary fractionation prior to analysis were considered. The most satisfactory method is that employing column separation, using macroreticular absorbent resins and dividing the wastewaters into hydrophobic and hydrophilic fractions. By subsequent use of ion exchange resins, each fraction was subdivided into acid, neutral, and basic subfractions. These subfractions yielded materials suitable for gas chromatography/mass spectrometric analysis performed by Finnigan Company. To identify the numerous compounds contained in each subfraction produced by the resin chromatographic separation, a GC/MS equipped with a computer library of mass spectra of 31,331 compounds was used. The peaks eluting from the GC can be individually and immediately analyzed for their spectra which can be compared to those in the computer library.