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OLS Field Name OLS Field Data
Main Title Evaluation of cryogenic trapping as a means for collecting organic compounds in ambient air /
Author Holdren, M. ; Rust, S. ; Smith, R. ; Koetz, J.
Other Authors
Author Title of a Work
Holdren, M.
CORP Author Battelle Columbus Labs., OH.;Environmental Monitoring Systems Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Environmental Monitoring Systems Laboratory,
Year Published 1985
Report Number EPA/600/4-85/002; EPA-68-02-3487
Stock Number PB85-144046
Subjects Low temperature engineering--Environmental aspects. ; Air--Pollution--United States--Measurement. ; Gas chromatography.
Additional Subjects Gas analysis ; Gas chromatography ; Traps ; Organic compounds ; Sampling ; Cryogenics ; Performance evaluation ; Laboratory equipment ; Chemical analysis ; Air pollution ; Volatile organic compounds ; Air pollution detection
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB85-144046 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 57 pages ; 28 cm
Abstract The methodology used in reduced temperature preconcentration of volatile organic compounds has been tested using a prototype automated gas chromatographic system. Mixtures of sixteen volatile organic compounds in humidified zero air were passed through a Nafion tube dryer and the organic compounds were collected on a reduced-temperature trap. The dryer reduced the water concentration without significantly affecting the integrity of the trace organic species. The selective reduction of water vapor improves the chromatography of the trace organics and likewise permits processing larger sample volumes. Statistical analysis of the data indicated that the canisters would serve as acceptable storage vessels for most of the volatile organic compounds tested.
Notes Caption title. "Jan. 1985." "EPA/600/4-85-002." Microfiche.
Place Published Research Triangle Park, NC :
Corporate Au Added Ent Environmental Monitoring Systems Laboratory (Research Triangle Park, N.C.)
PUB Date Free Form 1985.
NTIS Prices PC A04/MF A01
BIB Level m
Cataloging Source OCLC/T
OCLC Time Stamp 20011107182026
Language eng
Origin NTIS
OCLC Rec Leader 01170nam 2200289Ka 45020