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RECORD NUMBER: 3 OF 11

OLS Field Name OLS Field Data
Main Title Comparison of solid adsorbent sampling techniques for volatile organic compounds in ambient air {Microfiche}
Author Riggin, Ralph M. ; Markle, R. A.
Other Authors
Author Title of a Work
Markle, R. A.
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-68-02-3487; EPA/600/4-85/077
Stock Number PB86-127651
Subjects Organic compounds--Sampling
Additional Subjects Absorbers(Materials) ; Air pollution ; Gas analysis ; Polymide resins ; Gas chromatography ; Experimental design ; Comparison ; Chlorine organic compounds ; Vinyl chloride ; Performance evaluation ; Standards ; Concentration(Comparison) ; Chloromethanes ; Volatile organic compounds ; Air pollution sampling ; Air pollution detection ; Tenax GC resins ; Spherocarb ; Reference materials ; Ethane/trichloro-trifluoro ; Methane/dichloro
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB86-127651 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 76 p. : 1 ill. ; 28 cm.
Abstract
The specific objective of the study was to compare the performance of three solid adsorbents (Tenax, an experimental polyimide resin, and Spherocarb) as well as cryogenic trapping/gas chromatography for sampling and analysis of a target list of volatile organic compounds in ambient air. A series of 14 experimental sampling runs, wherein parallel samples were collected using each of the techniques, were conducted over a one-month period. Several of the runs used audit or other reference standards as a check on method performance for known analyte concentrations. Compared to the three adsorbent methods, cryogenic trapping/gas chromatography offered better precision and accuracy for the compounds of interest, especially when a mass selective detection system was employed. None of the three adsorbents gave optimal performance for the entire list of compounds, although in general Tenax gave the best results. Spherocarb was the best adsorbent for chloroethene (vinyl chloride), dichloromethane, and 1,1,2-trichloro-1,2,2-trifluoroethane. The polyimide material suffered from a number of operational problems which weigh heavily against its use in ambient air sampling.
Notes
Caption title. "Nov. 1985." "EPA/600/4-85/077." Microfiche.