Separation Speed in Thermal Field Flow Fractionation
| Autor: | A. C. van Asten, G. Stegeman, W. Th. Kok, R. Tijssen, H. Poppe |
|---|---|
| Přispěvatelé: | HIMS former research (FNWI) |
| Rok vydání: | 1994 |
| Předmět: |
chemistry.chemical_classification
Quantitative Biology::Biomolecules Field flow fractionation Chromatography Molecular mass Chemistry Analytical chemistry Polymer Polarization (waves) Analytical Chemistry Condensed Matter::Soft Condensed Matter Solvent Temperature gradient Solvent effects Chemical composition |
| Zdroj: | Analytical Chemistry, 66. American Chemical Society |
| ISSN: | 1520-6882 0003-2700 |
| Popis: | The effects of the temperature drop, channel thickness, solvent choice, and molecular mass and chemical nature of the polymer species on the separation speed in thermal field flow fractionation are investigated. The trends observed in the experiments are in good agreement with theoretical predictions. Separation speed was found to increase with the temperature gradient and the molecular mass of the polymer samples. Furthermore, the separation speed depends strongly on the chemical composition of the polymer and the solvent. The ability to fractionate polymer samples according to their chemical nature is demonstrated with the separation of four different polymer standards of approximately the same molecular mass |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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