Record Display for the EPA National Library Catalog


Main Title Analysis of Volatile Organic Chemicals in Aqueous Samples by Purge/GC (Gas Chromatography) with Selective Water Removal.
Author Cochran, J. W. ; Henson, J. M. ;
CORP Author Northrop Services, Inc., Ada, OK.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher cDec 88
Year Published 1988
Report Number EPA-68-03-3315; EPA/600/J-88/366;
Stock Number PB89-237358
Additional Subjects Water treatment ; Column packings ; Gas chromatography ; Test equipment ; Silicon oxides ; Chemical analysis ; Water pollution ; Cryogenics ; Reprints ; Volatile organic compounds
Library Call Number Additional Info Location Last
NTIS  PB89-237358 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 7p
A gas chromatographic method for volatile organic chemicals in which an aqueous sample is purged directly to a cryogenically cooled, fused silica column uses a Nafion tube drier between the purge vessel and GC column. The Nafion strips water from the gas stream during the purge step while allowing volatile halocarbons and aromatics to continue to the GC column. Examples of the technique are presented on 0.53 mm and 0.25 mm fused silica columns coated with a variety of stationary phases. (Copyright (c) 1988 Dr. Alfred Huethig Publishers.)