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  • Title: High-temperature liquid chromatography. Part III: Determination of the static permittivities of pure solvents and binary solvent mixtures--implications for liquid chromatographic separations.
    Author: Teutenberg T, Wiese S, Wagner P, Gmehling J.
    Journal: J Chromatogr A; 2009 Nov 27; 1216(48):8480-7. PubMed ID: 19833344.
    Abstract:
    This paper is the third in a series of three publications, explaining the concept of high-temperature liquid chromatography under various important aspects. The third publication deals with the determination of the static permittivities of pure solvents and binary solvent mixtures used in reversed-phase liquid chromatography in a temperature range between 25 and 200 degrees C. Furthermore, a critical comparison is made between the polarity parameter which is generally used to define the elution strength of solvent mixtures and the experimentally determined static permittivities. Also, the necessity for using binary solvent mixtures at elevated temperatures is discussed for efficient method development.
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