Fractal calibration in size-exclusion chromatography: I. An introduction

The elution behaviour of different polymer-solvent systems in three types of organic columns for SEC has been compared and interpreted. The experimental data show that the classical universal calibration is not accomplished. Deviations from a unique curve are observed due to the binary and ternary i...

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Autores principales:	García-Lopera, R., Irurzun, I., Abad, C., Campos, A.
Formato:	JOUR
Materias:	Calibration Fractal calibration Organic gel packings Polymers Universal calibration Crosslinking Entropy Fractals Gels Pore size Solvents Chromatographic distribution coefficients Size exclusion chromatography organic compound polymer solvent article calibration channel gating chemical interaction chromatography column chromatography cross linking data analysis elution enthalpy entropy experimental test fractal analysis gel gel permeation chromatography observation priority journal regulatory mechanism separation technique
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00219673_v996_n1-2_p33_GarciaLopera
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00219673_v996_n1-2_p33_GarciaLopera
record_format	dspace
spelling	todo:paper_00219673_v996_n1-2_p33_GarciaLopera2023-10-03T14:25:02Z Fractal calibration in size-exclusion chromatography: I. An introduction García-Lopera, R. Irurzun, I. Abad, C. Campos, A. Calibration Fractal calibration Organic gel packings Polymers Universal calibration Crosslinking Entropy Fractals Gels Polymers Pore size Solvents Chromatographic distribution coefficients Size exclusion chromatography organic compound polymer solvent article calibration channel gating chemical interaction chromatography column chromatography cross linking data analysis elution enthalpy entropy experimental test fractal analysis gel gel permeation chromatography observation priority journal regulatory mechanism separation technique The elution behaviour of different polymer-solvent systems in three types of organic columns for SEC has been compared and interpreted. The experimental data show that the classical universal calibration is not accomplished. Deviations from a unique curve are observed due to the binary and ternary interactions between the components of the system (solvent, polymer and gel) which results on secondary mechanisms accompanying the main pure or "ideal" SEC separation mechanism. Both, enthalpic and entropic effects are interpreted in terms of the swelling and crosslinking degrees of the gel packings, and are also related with the fractal characteristics of their surfaces, such as the fractal dimension and the available pore size. Moreover, a relationship between the fractal dimension of the pore surface and the chromatographic distribution coefficient is proposed. © 2003 Elsevier Science B.V. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00219673_v996_n1-2_p33_GarciaLopera
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Calibration Fractal calibration Organic gel packings Polymers Universal calibration Crosslinking Entropy Fractals Gels Polymers Pore size Solvents Chromatographic distribution coefficients Size exclusion chromatography organic compound polymer solvent article calibration channel gating chemical interaction chromatography column chromatography cross linking data analysis elution enthalpy entropy experimental test fractal analysis gel gel permeation chromatography observation priority journal regulatory mechanism separation technique
spellingShingle	Calibration Fractal calibration Organic gel packings Polymers Universal calibration Crosslinking Entropy Fractals Gels Polymers Pore size Solvents Chromatographic distribution coefficients Size exclusion chromatography organic compound polymer solvent article calibration channel gating chemical interaction chromatography column chromatography cross linking data analysis elution enthalpy entropy experimental test fractal analysis gel gel permeation chromatography observation priority journal regulatory mechanism separation technique García-Lopera, R. Irurzun, I. Abad, C. Campos, A. Fractal calibration in size-exclusion chromatography: I. An introduction
topic_facet	Calibration Fractal calibration Organic gel packings Polymers Universal calibration Crosslinking Entropy Fractals Gels Polymers Pore size Solvents Chromatographic distribution coefficients Size exclusion chromatography organic compound polymer solvent article calibration channel gating chemical interaction chromatography column chromatography cross linking data analysis elution enthalpy entropy experimental test fractal analysis gel gel permeation chromatography observation priority journal regulatory mechanism separation technique
description	The elution behaviour of different polymer-solvent systems in three types of organic columns for SEC has been compared and interpreted. The experimental data show that the classical universal calibration is not accomplished. Deviations from a unique curve are observed due to the binary and ternary interactions between the components of the system (solvent, polymer and gel) which results on secondary mechanisms accompanying the main pure or "ideal" SEC separation mechanism. Both, enthalpic and entropic effects are interpreted in terms of the swelling and crosslinking degrees of the gel packings, and are also related with the fractal characteristics of their surfaces, such as the fractal dimension and the available pore size. Moreover, a relationship between the fractal dimension of the pore surface and the chromatographic distribution coefficient is proposed. © 2003 Elsevier Science B.V. All rights reserved.
format	JOUR
author	García-Lopera, R. Irurzun, I. Abad, C. Campos, A.
author_facet	García-Lopera, R. Irurzun, I. Abad, C. Campos, A.
author_sort	García-Lopera, R.
title	Fractal calibration in size-exclusion chromatography: I. An introduction
title_short	Fractal calibration in size-exclusion chromatography: I. An introduction
title_full	Fractal calibration in size-exclusion chromatography: I. An introduction
title_fullStr	Fractal calibration in size-exclusion chromatography: I. An introduction
title_full_unstemmed	Fractal calibration in size-exclusion chromatography: I. An introduction
title_sort	fractal calibration in size-exclusion chromatography: i. an introduction
url	http://hdl.handle.net/20.500.12110/paper_00219673_v996_n1-2_p33_GarciaLopera
work_keys_str_mv	AT garcialoperar fractalcalibrationinsizeexclusionchromatographyianintroduction AT irurzuni fractalcalibrationinsizeexclusionchromatographyianintroduction AT abadc fractalcalibrationinsizeexclusionchromatographyianintroduction AT camposa fractalcalibrationinsizeexclusionchromatographyianintroduction
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Fractal calibration in size-exclusion chromatography: I. An introduction

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