Home > Search Results: keywords:"fluorinated stationary phase Rtx-200MS"
Search:
Search Tips :: Advanced Search
Search collections:
Sort by: Display results: Output format:
National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Characterization of interactions between Rtx-200MS fluorinated stationary phase and analytes by inverse gas chromatography
 Vrzal, Tomáš ; Čabala, Radomír (advisor) ; Feltl, Ladislav (referee)
Fluorinated stationary phase in Rtx-200MS column have been characterized by determination of system constants of Abraham equation. Retention on this phase is driven by dispersive and orientation/induction forces. Significant interaction contribution of lone pair electrons or π- electrons provides unique selectivity for analytes with excess of electron density. Unusual behavior of this phase have been determined by study of separation mechanism of polar and nonpolar analytes, in comparison of their separation on polar and nonpolar phases. This behavior is due to medium polarity of the phase (system constant s), which is not so pronounced to cancel separation of nonpolar analytes due to induction forces. In some cases contribution of lone pair electrons or π-electrons can contribute to this separations. Key words fluorinated stationary phase Rtx-200MS, inverse gas chromatography, LFER method, Abraham's equation
Detailed record
Characterization of interactions between Rtx-200MS fluorinated stationary phase and analytes by inverse gas chromatography
 Vrzal, Tomáš ; Čabala, Radomír (advisor) ; Feltl, Ladislav (referee)
Fluorinated stationary phase in Rtx-200MS column have been characterized by determination of system constants of Abraham equation. Retention on this phase is driven by dispersive and orientation/induction forces. Significant interaction contribution of lone pair electrons or π- electrons provides unique selectivity for analytes with excess of electron density. Unusual behavior of this phase have been determined by study of separation mechanism of polar and nonpolar analytes, in comparison of their separation on polar and nonpolar phases. This behavior is due to medium polarity of the phase (system constant s), which is not so pronounced to cancel separation of nonpolar analytes due to induction forces. In some cases contribution of lone pair electrons or π-electrons can contribute to this separations. Key words fluorinated stationary phase Rtx-200MS, inverse gas chromatography, LFER method, Abraham's equation
Detailed record

Interested in being notified about new results for this query?
Subscribe to the RSS feed.
Digital Repository :: Search :: Submit :: Personalize :: Help
Powered by Invenio v1.1.2
Maintained by admin.invenio@techlib.cz
This site is also available in the following languages:
Česky  English