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
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB85-191112 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
12p |
Abstract |
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 Samples were periodically withdrawn from the canisters and analyzed using capillary-column gas chromatography with cryogenic sample preconcentration.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. |