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Comparison between the conditions for solute focussing by the static and dynamic solvent effects under ideal conditions

✍ Scribed by Peter J. Apps; Victor Pretorius

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 433 KB
Volume: 471
Category: Article
ISSN: 1873-3778
DOI: 10.1016/s0021-9673(00)94157-8

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✦ Synopsis

In capillary gas chromatography static and dynamic solvent effect inlets provide quantitatively precise methods of sample introduction of solutes which fulfill the conditions for solute focussing. Equations are derived for the conditions for focussing on static and dynamic films. In the case of a static film a solute will be focussed if the sum of its partition coefficient between the gas phase and the film and the phase ratio are greater than the partition coefficient of the solvent. On dynamic solvent films solutes whose partition coefficients are larger than those of the solvent are focussed.

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