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Excess molar volumes of binary liquid mixtures of cyclohexane-carbon tetrachloride and toluene-benzene at various temperatures
Aljana Petek, Valter Doleček, 1998, original scientific article

Abstract: Excess molar volumes of binary mixtures of cyclohexane-carbon tetrachloride at 288.15, 293.15, 298.15 K and toluene-benzene at 293.15, 298.15, 308.15 K have been determined using a vibrating tube densimeter. Flory's theory of liquid mixtures has been applied to calculate the excess entalphy of cyclohexane-carbon tetrachloride at 298,15 K. The calculated value for the equimolar mixture is in fairly good agreement with experimental results.
Keywords: physical chemistry, molar volumes, measurements, excess enthalpy
Published: 10.07.2015; Views: 845; Downloads: 62
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Chiral discrimination in mobile phases for HPLC
Renato Lukač, Andrew J. Clark, Syma Khalid, Alison Rodger, Alan Snedden, P. Mark Rodger, 2002, original scientific article

Abstract: In this paper we present an algorithm and some preliminary results of a computer simulation study designed to elucidate the molecular interaction mechanisms associated with chiral discrimination in chiral high performance liquid chromatography (HPLC). Molecular dynamics simulations have been performed on a novel active stationary phase constituent based on disaccharides and a model analyte in a typical solvent used as mobile phase in chiral HPLC. The results are interpreted in terms of typical binding geometries and energies found from the simulations. This paper provides basic algorithms for predicting enantiometric selectivity and for investigating the implications for choice of parameters such as solvent polarity and temperature for optimising chiral HPLC separations
Keywords: physical chemistry, liquid crystals, liquid chromatography, computer simulations, spectroscopy
Published: 07.06.2012; Views: 1208; Downloads: 43
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