Journal ArticleDOI
Evaluation of dynamic gas chromatographic methods for the determination of adsorption and solution isotherms
J.F.K. Huber,R.G. Gerritse +1 more
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In this article, an equation for the calculation of distribution isotherms from gas chromatographic data is derived which applies not only at low mole fractions but also at higher mole fractions.About:
This article is published in Journal of Chromatography A.The article was published on 1971-01-01. It has received 192 citations till now. The article focuses on the topics: Adsorption.read more
Citations
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Experimental determination of single solute and competitive adsorption isotherms.
TL;DR: Dynamic methods analysing concentration profiles that could be detected at the outlet of fixed-beds packed with the stationary phase of interest and recommendations are given regarding the potential and the applicability of the methods discussed.
Journal ArticleDOI
Mechanism of ion-pair liquid chromatography of amines, neutrals, zwitterions and acids using anionic hetaerons
John H. Knox,Richard A. Hartwick +1 more
TL;DR: The basis of retention in reversed-phase ion-pair chromatography is examined in this article using C18, C10 and C12 alkyl sulphates as hetaerons with a range of cations, neutrals, zwitterions and anions as solutes.
Journal ArticleDOI
Mechanism of solute retention in liquid—solid chromatography and the role of the mobile phase in affecting separation
L.R. Snyder,Hans Poppe +1 more
TL;DR: The S-S model has been experimentally validated in terms of thousands of k′ measurements, for hundreds of different solutes and solvents, and it has been applied in polar-bonded-phase liquid chromatography and to gas-solid chromatography, especially as regards solvent selectivity effects.
Journal ArticleDOI
Fundamental challenges and opportunities for preparative supercritical fluid chromatography.
TL;DR: A clearer understanding of the physico-chemical behavior of supercritical fluids in preparative chromatographic columns under nonlinear conditions is still needed, which seems to be the main obstacle to the establishment of SFC as a sustainable separation tool.
Journal ArticleDOI
Measurement of adsorption isotherms by liquid chromatography
TL;DR: A miniaturized liquid chromatographic system was constructed to measure isotherms with milligram quantities of material by frontal development, and the frontal analysis technique was determined to be more accurate and convenient than other methods.
References
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Journal ArticleDOI
Gas-liquid partition chromatography: the separation and micro-estimation of volatile fatty acids from formic acid to dodecanoic acid
A. T. James,A. J. P. Martin +1 more
TL;DR: Modifications necessary to the theory of Martin & Synge (1941) to allow for the compressibility of the mobile phase are presented and the application of the gas-liquid partition chromatogram to the separation of volatile fatty acids is described.
Journal ArticleDOI
Mathematics of Adsorption in Beds. VI. The Effect of Longitudinal Diffusion in Ion Exchange and Chromatographic Columns
Leon Lapidus,Neal R. Amundson +1 more
Journal ArticleDOI
Contribution to the theory of chromatography : Linear non-equilibrium elution chromatography
TL;DR: In this paper, the Hermite polynomials were used to solve the problem of elution chromatography and the first moment is of basic significance for the determination of retention time.
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