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Improvement in the generation of adsorption isotherm data in the elution by characteristic points method-: the ECP-slope approach
Karlstad University, Faculty of Technology and Science, Department of Chemistry and Biomedical Sciences.ORCID iD: 0000-0003-1819-1709
Uppsala University, Sweden.
Eka Chemicals AB, Sweden.
Karlstad University, Faculty of Technology and Science, Department of Chemistry and Biomedical Sciences.ORCID iD: 0000-0002-7123-2066
2010 (English)In: Journal of Chromatography A, ISSN 0021-9673, E-ISSN 1873-3778, Vol. 1217, no 46, p. 7215-7221Article in journal (Refereed) Published
Abstract [en]

The elution by characteristic points (ECP) method is a very rapid and precise method for determination of the phase system equilibrium of phase systems in broad solute concentration ranges. Thus, the method is especially suitable for rapid characterization of high efficient separation systems. One important source of error, the effects by the post-loop dispersion, was eliminated in a recent investigation. In this study, the systematic error caused by the selection of the integration starting point at concentration equal to 0 is eliminated. This is done by developing and validating a new procedure for isotherm data generation; the ECP-slope method. The method generates raw slope data of the adsorption isotherm instead of raw adsorption data by integrations as the classical ECP does. Both numerical and experimental data were used for the comparison of the classical ECP approach with the slope-ECP method

Place, publisher, year, edition, pages
Elsevier, 2010. Vol. 1217, no 46, p. 7215-7221
Keywords [en]
Single component adsorption, Adsorption isotherms, Elution by characteristic points method, Slope data, The ECP-slope method
National Category
Chemical Sciences
Research subject
Chemistry
Identifiers
URN: urn:nbn:se:kau:diva-10529DOI: 10.1016/j.chroma.2010.09.004OAI: oai:DiVA.org:kau-10529DiVA, id: diva2:494070
Available from: 2012-02-08 Created: 2012-02-08 Last updated: 2019-07-12Bibliographically approved

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Samuelsson, JörgenFornstedt, Torgny

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