Record Display for the EPA National Library Catalog

RECORD NUMBER: 36 OF 75

OLS Field Name OLS Field Data
Main Title EPA (Environmental Protection Agency) Method Study 23B, Method 501.2, Trihalomethanes by Liquid/Liquid Extraction.
Author Warner, B. J. ; Cheng, S. C. ; Finke, J. M. ; Friedman, C. S. ; Mitrosky, S. ;
CORP Author Monsanto Research Corp., Dayton, OH.;Environmental Monitoring and Support Lab.-Cincinnati, OH.
Year Published 1984
Report Number EPA-68-03-2856; EPA-600/4-84-021;
Stock Number PB84-168806
Additional Subjects Water analysis ; Water pollution ; Solvent extraction ; Gas chromatography ; Potable water ; Distilled water ; Chloroform ; Bromoform ; Chemical analysis ; Laboratory equipment ; EPA method 23B ; EPA method 501.2 ; Halomethanes ; Water pollution detection ; Electron capture detectors ; Methane/bromo-dichloro ; Methane/chloro-dibromo ; Procedures
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB84-168806 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 105p
Abstract
The experimental design and results of a validation study for an analytical method to detect trihalomethanes in water are described herein. This method consisted of a liquid/liquid extraction using pentane and subsequent direct analysis by gas chromatography using an electron capture detector. The six concentrations of spiking solutions contained chloroform, bromodichloromethane, chlorodibromomethane and bromoform. The two waters used in the study were distilled and drinking water, both supplied by the individual laboratories. Statistical analyses and conclusions in this report are based on analytical data obtained by twenty collaborating laboratories. The report covers a period from September 1979 to December 1982.