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Chromatographie sur couche mince de microparticules de gel de silice

Thin-layer chromatography with microparticles of silica gel

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Summary

The preparation of efficient thin-layer plates (binder free) made with the newly available samples of small silica gel particles (5 to 40 μm) is described. The performances are discussed and illustrated by various applications to the separation of mixtures by adsorption and reversed phase partition chromatography. The parameters which control solvent migration and band broadening are discussed. It is shown that there is no such revolutionary concept as high performance thin-layer chromatography, but merely the normal advance of a conventional analytical technique following predictions made long ago (1).

Résumé

On décrit la préparation de plaques efficaces pour la chromatographie en couche mince (sans liant), utilisant les pertites particules de gel de silice à présent disponibles (5–40 μm). On discute le performances obtenues et les illustre par différentes séparations de mélanges faites tant en chromatographie d'adsorption qu'en chromatographie du type partage avec phases inversées. On discute les paramètres qui contrôlent la migration du solvant et l'élargissement des bandes et montre qu'il n'y a pas une nouvelle méthode révolutionnaire de chromatographie mais le progrès normal d'une technique analytique classique, progrès prévu de longue date [1].

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Siouffi, A.M., Guillemonat, A. & Guiochon, G. Chromatographie sur couche mince de microparticules de gel de silice. Chromatographia 10, 651–657 (1977). https://doi.org/10.1007/BF02268892

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  • DOI: https://doi.org/10.1007/BF02268892

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