Record Display for the EPA National Library Catalog


Main Title Storage Stability of Volatile Organic Compounds in SUMMA (Trade name) Polished Canisters.
Author Pleil, J. D. ; Oliver, K. D. ; McClenny, W. A. ;
CORP Author Northrop Services, Inc., Research Triangle Park, NC.;Environmental Monitoring Systems Lab., Research Triangle Park, NC.
Year Published 1985
Report Number EPA-68-02-4035; EPA/600/D-85/075;
Stock Number PB85-191112
Additional Subjects Air pollution ; Gas storage ; Samples ; Cans ; Stability ; Organic compounds ; Sampling ; Gas chromatography ; Experimental design ; Volatile organic compounds ; Air pollution sampling
Library Call Number Additional Info Location Last
NTIS  PB85-191112 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 12p
Six-liter volume SUMMA polished canisters were filled with air samples containing certain volatile organic compounds (VOCs) of environmental interest at concentrations at or below 2 ppbv. Samples were periodically withdrawn from the canisters and analyzed using capillary-column gas chromatography with cryogenic sample preconcentration. The study includes analysis periods of one week and one month to determine storage stability. Synthetic VOC samples in humidified zero-grade air and spiked VOC samples in ambient air were tested. Ambient samples were prepared during peak traffic times to obtain typical air mixtures. Most compounds tested exhibited stability in concentration within typical analytical precision. This validates use of these canisters for collection of whole air samples for subsequent determination of ppbv-level VOC concentrations, at least under typical monitoring conditions.