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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2003
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219673_v996_n1-2_p33_GarciaLopera http://hdl.handle.net/20.500.12110/paper_00219673_v996_n1-2_p33_GarciaLopera |
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paper:paper_00219673_v996_n1-2_p33_GarciaLopera2023-06-08T14:44:47Z Fractal calibration in size-exclusion chromatography: I. An introduction 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. 2003 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219673_v996_n1-2_p33_GarciaLopera 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 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. |
| 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 |
| publishDate |
2003 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219673_v996_n1-2_p33_GarciaLopera http://hdl.handle.net/20.500.12110/paper_00219673_v996_n1-2_p33_GarciaLopera |
| _version_ |
1768544716767363072 |