Methane Retention Time versus Mathematical Dead Time
Open Access
- 1 June 1980
- journal article
- Published by Oxford University Press (OUP) in Journal of Chromatographic Science
- Vol. 18 (6) , 267-272
- https://doi.org/10.1093/chromsci/18.6.267
Abstract
Retention data for four inert gases and the C1-C5n-alkanes was measured on OV-101, OV-17, and n-hexadecane with a GC/MS system operated in the selected ion mode. The data for the inert gases were used to obtain accurate values of the retention time, tm, of an unretained solute by a technique proposed by Kobayashi. In this paper, another linearization scheme is developed that uses the C1-C5n-alkane data and carbon number as the linearization parameter. This scheme, in which an effective carbon number of 0.5 was assigned to methane, was used to calculate accurate tm values. The same linearization scheme was used to obtain tm data with a GC equipped only with an FID. The calculated tm values were used to obtain retention data for n-alkane solutes on OV-101 and n-hexadecane over a range of temperatures.Keywords
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