Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title EPA (Environmental Protection Agency) Method Study 23A, Method 501.1, Trihalomethanes by Purge and Trap.
Author Warner, B. J. ; Cheng, S. C. ; Friedman, C. S. ; Mitrosky, S. ; Snyder, A. D. ;
CORP Author Monsanto Research Corp., Dayton, OH.;Environmental Monitoring and Support Lab.-Cincinnati, OH.
Year Published 1984
Report Number EPA-68-03-2856; EPA-600/4-84-020;
Stock Number PB84-169994
Additional Subjects Water analysis ; Water pollution ; Solvent extraction ; Gas chromatography ; Chloroform ; Bromoform ; Chemical analysis ; Water quality ; Chlorine organic compounds ; Halomethanes ; EPA method 501.1 ; Water pollution detection ; Electron capture detectors ; Methane/bromo-dichloro ; Methane/chloro-dibromo
Library Call Number Additional Info Location Last
NTIS  PB84-169994 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 116p
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.