Kinetic plots for programmed temperature gas chromatography
نویسندگان
چکیده
منابع مشابه
Programmed temperature vaporiser-based injection in capillary gas chromatography.
The application of programmed temperature vaporisation (PTV) in capillary gas chromatographic analysis is reviewed. The development of the different strategies as well as the state of the art are described. As the analytes are normally enriched in the PTV insert, the quoted papers are subdivided depending on whether the enrichment was carried out from organic solvents, from water or from gaseou...
متن کاملHigh Temperature Gas Chromatography
Gas chromatography (GC) is generally believed to be restricted to the analysis of ‘volatiles’ and is less applicable to the analysis of so-called ‘heavy’ compounds. The introduction of persilylated glass and fused silicea columns, of thermostable stationary phases and of non-discriminative injection devices in capillary GC (CGC) have made the deRnitions of ‘volatile’ and ‘heavy’ very Sexible. H...
متن کاملEvaluation of retention time for temperature-programmed gas chromatography by use of a closed-form integral.
A closed-form integral for the Arrhenius exponential was obtained by using an approximate relation instead of the usual one in a linear temperature program. The closed-form integral can be applied to predict the retention time very well both for a packed column and for a capillary column, in constant the velocity mode.
متن کاملRapid temperature-programmed separation and retention prediction on a novel packed-capillary column in gas chromatography.
Novel packed-capillary columns for gas chromatography were developed with a thin-wall stainless-steel capillary of 1.0 mm i.d.; and rapid temperature-programmed separations have been carried out after a basic evaluation concerning the compatibility of these columns to the temperature program. With a numerical integration method, the retention of several test analytes during temperature-programm...
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ژورنال
عنوان ژورنال: Journal of Chromatography A
سال: 2016
ISSN: 0021-9673
DOI: 10.1016/j.chroma.2016.04.030