Analysis of volatile organic chemicals in aqueous samples by purge/GC (gas chromatography) with selective water removal

Technical Report · Thu Dec 01 04:00:00 EST 1988

OSTI ID:5439735

Cochran, J W; Henson, J M

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-m and 0.25-mm fused-silica columns coated with a variety of stationary phases.

• Research Organization: Northrop Services, Inc., Ada, OK (USA)
• OSTI ID: 5439735
• Report Number(s): PB-89-237358/XAB
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
CHALCOGENIDES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
COLUMN PACKING
CRYOGENICS
GAS CHROMATOGRAPHY
MATTER
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PACKINGS
POLLUTION
REMOVAL
SEPARATION PROCESSES
SILICON COMPOUNDS
SILICON OXIDES
VOLATILE MATTER
WATER POLLUTION
WATER REMOVAL
WATER TREATMENT