Nonlinear frequency response method for estimation of single solute adsorption isotherms. Part II Experimental study
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2007
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The aim of this paper is to investigate the possibility of applying a nonlinear frequency response (FR) method described by Ilic et al. [2007b. Nonlinear frequency response method for estimation of single solute adsorption isotherms. Part 1. Theoretical basis and simulations, this volume, doi:10.1016/j.ces.2007.05.004] to determine single solute adsorption isotherms. The method is based on the analysis of the nonlinear FR of a chromatographic column to a periodical change of the inlet concentration around several steady-state concentrations. The first, second and third local derivatives of single solute isotherms are estimated from the low-frequency asymptotic behaviour of the corresponding FR functions. The adsorption of 4-tert-butylphenol and ethyl benzoate as single solutes is studied on octadecyl silica (C-18) from methanol-water mixture (60:40). Experiments are performed using a standard gradient HPLC unit capable to realize inlet concentration changes in a nearly sine waveform. S...mall injections of compounds into the not preloaded column, as well as conventional frontal analysis experiments are performed for rough estimation of the adsorption isotherm coefficients and comparison with the results obtained using the nonlinear FR method.
Ključne reči:
adsorption isotherms / liquid chromatography / nonlinear frequency response / harmonic analysis / higher-order frequency response functions / parameter estimationIzvor:
Chemical Engineering Science, 2007, 62, 16, 4394-4408Izdavač:
- Pergamon-Elsevier Science Ltd, Oxford
DOI: 10.1016/j.ces.2007.05.005
ISSN: 0009-2509
WoS: 000248960000020
Scopus: 2-s2.0-34447300741
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Ilić, Milica AU - Petkovska, Menka AU - Seidel-Morgenstern, Andreas PY - 2007 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1169 AB - The aim of this paper is to investigate the possibility of applying a nonlinear frequency response (FR) method described by Ilic et al. [2007b. Nonlinear frequency response method for estimation of single solute adsorption isotherms. Part 1. Theoretical basis and simulations, this volume, doi:10.1016/j.ces.2007.05.004] to determine single solute adsorption isotherms. The method is based on the analysis of the nonlinear FR of a chromatographic column to a periodical change of the inlet concentration around several steady-state concentrations. The first, second and third local derivatives of single solute isotherms are estimated from the low-frequency asymptotic behaviour of the corresponding FR functions. The adsorption of 4-tert-butylphenol and ethyl benzoate as single solutes is studied on octadecyl silica (C-18) from methanol-water mixture (60:40). Experiments are performed using a standard gradient HPLC unit capable to realize inlet concentration changes in a nearly sine waveform. Small injections of compounds into the not preloaded column, as well as conventional frontal analysis experiments are performed for rough estimation of the adsorption isotherm coefficients and comparison with the results obtained using the nonlinear FR method. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Chemical Engineering Science T1 - Nonlinear frequency response method for estimation of single solute adsorption isotherms. Part II Experimental study EP - 4408 IS - 16 SP - 4394 VL - 62 DO - 10.1016/j.ces.2007.05.005 ER -
@article{ author = "Ilić, Milica and Petkovska, Menka and Seidel-Morgenstern, Andreas", year = "2007", abstract = "The aim of this paper is to investigate the possibility of applying a nonlinear frequency response (FR) method described by Ilic et al. [2007b. Nonlinear frequency response method for estimation of single solute adsorption isotherms. Part 1. Theoretical basis and simulations, this volume, doi:10.1016/j.ces.2007.05.004] to determine single solute adsorption isotherms. The method is based on the analysis of the nonlinear FR of a chromatographic column to a periodical change of the inlet concentration around several steady-state concentrations. The first, second and third local derivatives of single solute isotherms are estimated from the low-frequency asymptotic behaviour of the corresponding FR functions. The adsorption of 4-tert-butylphenol and ethyl benzoate as single solutes is studied on octadecyl silica (C-18) from methanol-water mixture (60:40). Experiments are performed using a standard gradient HPLC unit capable to realize inlet concentration changes in a nearly sine waveform. Small injections of compounds into the not preloaded column, as well as conventional frontal analysis experiments are performed for rough estimation of the adsorption isotherm coefficients and comparison with the results obtained using the nonlinear FR method.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Chemical Engineering Science", title = "Nonlinear frequency response method for estimation of single solute adsorption isotherms. Part II Experimental study", pages = "4408-4394", number = "16", volume = "62", doi = "10.1016/j.ces.2007.05.005" }
Ilić, M., Petkovska, M.,& Seidel-Morgenstern, A.. (2007). Nonlinear frequency response method for estimation of single solute adsorption isotherms. Part II Experimental study. in Chemical Engineering Science Pergamon-Elsevier Science Ltd, Oxford., 62(16), 4394-4408. https://doi.org/10.1016/j.ces.2007.05.005
Ilić M, Petkovska M, Seidel-Morgenstern A. Nonlinear frequency response method for estimation of single solute adsorption isotherms. Part II Experimental study. in Chemical Engineering Science. 2007;62(16):4394-4408. doi:10.1016/j.ces.2007.05.005 .
Ilić, Milica, Petkovska, Menka, Seidel-Morgenstern, Andreas, "Nonlinear frequency response method for estimation of single solute adsorption isotherms. Part II Experimental study" in Chemical Engineering Science, 62, no. 16 (2007):4394-4408, https://doi.org/10.1016/j.ces.2007.05.005 . .