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RECORD NUMBER: 25 OF 86

OLS Field Name OLS Field Data
Main Title Effect of Water on Retention Time on a Fused Silica Column (Journal Version).
Author Burns, W. F. ; Tingey, D. T. ; Evans, R. C. ;
CORP Author Corvallis Environmental Research Lab., OR.
Year Published 1982
Report Number EPA-600/J-82-382;
Stock Number PB84-102482
Additional Subjects Vegetation ; Chemical analysis ; Water vapor ; Chromatographic analysis ; Alkanes ; Alkenes ; Aldehydes ; Air pollution ; Reprints ; Natural emissions ; Fused silica columns ; Retention time
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB84-102482 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 4p
Abstract
Fused silica open tubular columns are efficient, mechanically strong, and relatively inert, so compounds with a variety of functional groups can be chromatographed on the same column (1). For these reasons a chemically bonded fused silica column was selected for the separation and quantification of hydrocarbons and oxygenated compounds emitted from vegetation. When analyzing vegetative emissions, however, it was observed that the retention times of individual compounds varied about 0.25 minute, which was about 10 times greater variation than that of similar standards. This variability made identification and quantification of the compounds difficult, particularly with closely eluting peaks. This paper describes the influence of water on the retention times of homologous series of alkanes, alkenes, and aldehydes on a fused silica open tubular column which may provide added understanding of water-related retention time variability.