LrgpV1, Main, Exploration, bibRecord, 001255

Accurate measurements of thermodynamic properties of solutes in ionic liquids using inverse gas chromatography.

Identifieur interne : 001255 ( Main/Exploration ); précédent : 001254; suivant : 001256

Accurate measurements of thermodynamic properties of solutes in ionic liquids using inverse gas chromatography.

Auteurs : Fabrice Mutelet [France] ; Jean-Noël Jaubert

Source :

Journal of chromatography. A [ 0021-9673 ] ; 2006.

RBID : pubmed:16310203

Descripteurs français

KwdFr :
- Chromatographie en phase gazeuse (), Reproductibilité des résultats, Solvants, Thermodynamique.
MESH :
- Chromatographie en phase gazeuse, Reproductibilité des résultats, Solvants, Thermodynamique.

English descriptors

KwdEn :
- Chromatography, Gas (methods), Reproducibility of Results, Solvents, Thermodynamics.
MESH :
- chemical : Solvents.
- methods : Chromatography, Gas.
- Reproducibility of Results, Thermodynamics.

Abstract

Activity coefficients at infinite dilution of 29 organic compounds in two room temperature ionic liquids were determined using inverse gas chromatography. The measurements were carried out at different temperatures between 323.15 and 343.15K. To establish the influence of concurrent retention mechanisms on the accuracy of activity coefficients at infinite dilution for 1-butyl-3-methylimidazolium octyl sulfate and 1-ethyl-3-methylimidazolium tosylate, phase loading studies of the net retention volume per gram of packing as a function of the percent phase loading were used. It is shown that most of the solutes are retained largely by partition with a small contribution from adsorption on 1-butyl-3-methylimidazolium octyl sulfate and that the n-alkanes are retained predominantly by interfacial adsorption on 1-ethyl-3-methylimidazolium tosylate.

DOI: 10.1016/j.chroma.2005.10.046
PubMed: 16310203

Affiliations:

Le document en format XML

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<front><div type="abstract" xml:lang="en">Activity coefficients at infinite dilution of 29 organic compounds in two room temperature ionic liquids were determined using inverse gas chromatography. The measurements were carried out at different temperatures between 323.15 and 343.15K. To establish the influence of concurrent retention mechanisms on the accuracy of activity coefficients at infinite dilution for 1-butyl-3-methylimidazolium octyl sulfate and 1-ethyl-3-methylimidazolium tosylate, phase loading studies of the net retention volume per gram of packing as a function of the percent phase loading were used. It is shown that most of the solutes are retained largely by partition with a small contribution from adsorption on 1-butyl-3-methylimidazolium octyl sulfate and that the n-alkanes are retained predominantly by interfacial adsorption on 1-ethyl-3-methylimidazolium tosylate.</div>
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Accurate measurements of thermodynamic properties of solutes in ionic liquids using inverse gas chromatography.

Accurate measurements of thermodynamic properties of solutes in ionic liquids using inverse gas chromatography.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki

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