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Polymeric Teflon support “polychrome”

Polymerer Teflonträger „Polychrome”

Support de téflon polymérique “Polychrome”

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Summary

Methods are described of preparing a sufficiently strong and efficient Teflon support possessing a particularly high degree of inertness to corrocive samples. The supports prepared were almost as stable as diatomite supports. One of the disadvantages of the Teflon supports is the fact that, compared with the diatomite supports, their working temperatures are lower (200–250°C). The Teflon supports can be used in the separation of volatile corrosive and polar compounds. The Teflon supports are usefu in analyses of aqueous solutions.

Zusammenfassung

Es werden Verfahren beschrieben zur Herstellung eines genügend harten und trennwirksamen Teflon-Trägermaterials mit besonders hoher Widerstandsfähigkeit gegen korrosive Proben. Die hergestellten Trägermaterialien waren fast ebenso haltbar wie Kieselgur-Trägermaterial. Einer der Nachteile der Trägermaterialien aus Teflon ist die Tatsache, daß im Vergleich zum Kieselgur die Betriebstemperaturen niedriger liegen (200–250°C). Teflon-Trägermaterial kann zur Trennung von flüchtigen korrosiven und polaren Verbindungen eingesetzt werden. Besonders nützlich ist es bei der Analyse von wäßrigen Lösungen.

Sommaire

On décrit des méthodes pour la préparation d'un support en téflon qui possède un pouvoir de séparation suffisant et, en même temps, une très haute résistance aux échantillons corrosifs. Les supports préparés étaient presque aussi stables que ceux de diatomite. L'un des désavantages des supports en téflon est le fait que la température de travail est moins haute que celle qui est possible avec les supports de diatomite (200–250°C). Les supports en téflon peuvent étre employés pour la séparation de composés volatils corrosifs et polaires. Ils sont particulièrement utiles pour l'analyse de solutions aqueuses.

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Brazhnikov, V.V., Moseva, L.I. & Sakodynskii, K.I. Polymeric Teflon support “polychrome”. Chromatographia 3, 306–315 (1970). https://doi.org/10.1007/BF02290580

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