||Selective Water Removal in Purge/GC (Gas Chromatograph) Analysis of Volatile Aromatics in Aqueous Samples.
Cochran, J. W. ;
||Northrop Services, Inc., Ada, OK.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Gas chromatography ;
Aromatic compounds ;
Water analysis ;
Drying apparatus ;
Capillary tubes ;
Chromatographic analysis ;
Water pollution detection
||Some EPA libraries have a fiche copy filed under the call number shown.
A gas chromatographic method for volatile aromatics 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 to selectively remove water from the analyte-containing purge stream. Volatile aromatics are focused on the cold capillary column with subsequent oven temperature programming for GC analysis. Examples of the technique have been presented on a 5.3 mm, DB-5 column. (Copyright (c) 1987, Dr. Alfred Huethig Publishers.)