Advances in Chromatography, Volume 40 by Phyllis R. Brown

By Phyllis R. Brown

"Volume forty provides an authoritative choice of the simplest and latest study findings in separation technological know-how. Surveys contemporary advancements in excessive performance-liquid (HPLC), reversed-phase liquid (RPLC), countercurrent (CCC), and micellar electrokinetic chromatography (MEKC)."

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Extra resources for Advances in Chromatography, Volume 40

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The measurements of the peak profiles were made in the proper ranges of carrier gas flow rate and column temperature. B Packing Materials and Columns Four kinds of RP packing materials for HPLC were used, made of the same silica bonded to different n-alkyl chains (TMS, C4, C8, and ODS). The RP columns were purchased from YMC (Kyoto, Japan) and used to measure accurately the influence of the rates of adsorption and diffusion of the sample molecules on the mass-transfer processes involved in the columns and on the degree of peak spreading.

In this study, the value of ke of the methanolwater mixtures was estimated from an imaginary heat of vaporization calculated from the activation energy of the viscosity of the mixed solvents. The value of ke thus obtained varies with the methanol concentration. Although the trend of the change in ke was similar to the result reported by Horváth et al. [27], a somewhat larger value was obtained. 0 at f = 70. The use of a correlation between ke and f corresponds to the first calculation method used in Fig.

A. H. Billet and G. Rippel Chemical Equilibria in Ion Chromatography: Theory and Applications Péter Hajós, Ottó Horváth, and Gabriella Révész Fundamentals of Simulated Moving Bed Chromatography under Linear Conditions Guoming Zhong and Georges Guiochon Page 1 1 Fundamental Interpretation of the Peak Profiles in Linear Reversed-Phase Liquid Chromatography Kanji Miyabe* and Georges Guiochon Department of Chemistry, University of Tennessee, Knoxville, and Division of Chemical and Analytical Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee I.

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