Document Detail

The direct inverse method: a novel approach to estimate adsorption isotherm parameters.
MedLine Citation:
PMID:  20149376     Owner:  NLM     Status:  MEDLINE    
A novel method to estimate adsorption isotherm parameters is presented and its applicability is studied through synthetic as well as experimental data. This approach assumes a linear dependency of the UV absorption intensity on the solute concentration in the fluid phase, at least in certain ranges of the UV spectra. It was demonstrated that by fitting the absorption profiles, i.e. the new direct inverse method, and by fitting the concentration profiles, i.e. the classical inverse method, very similar adsorption isotherm parameters can be obtained. The findings presented in this work have as important implication the elimination of the requirement of converting a measured absorption intensity into a concentration value, i.e. the elimination of the calibration of the UV signal.
Jeroen Cornel; Abhijit Tarafder; Shigeharu Katsuo; Marco Mazzotti
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Publication Detail:
Type:  Journal Article     Date:  2010-01-25
Journal Detail:
Title:  Journal of chromatography. A     Volume:  1217     ISSN:  1873-3778     ISO Abbreviation:  J Chromatogr A     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-03-01     Completed Date:  2010-05-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9318488     Medline TA:  J Chromatogr A     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  1934-41     Citation Subset:  IM    
Copyright Information:
Copyright 2010 Elsevier B.V. All rights reserved.
Institute of Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092 Zurich, Switzerland.
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MeSH Terms
Chromatography, Liquid / methods*
Computer Simulation
Models, Chemical
Spectrophotometry, Ultraviolet
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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