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Separation, Hydrodynamics, and Joule Heating Effects in Continuous Annular Electrochromatography.
- Source :
-
Chemical Engineering & Technology . Jun2013, Vol. 36 Issue 6, p950-958. 9p. - Publication Year :
- 2013
-
Abstract
- First experimental results of the transfer from an analytical batch electrochromatography to a continuous annular electrochromatographic process are presented. In order to study the electrochromatographic effects, hydrodynamics and functionality tests were investigated in a planar reference system. As stationary phase inside the annular gap, an inorganic C8 reverse-phase monolith prepared by an in situ sol-gel process was implemented. The generation of Joule heating during the process was determined by a contact-free thermal camera system. The volumetric flow rates of the electrolyte were detected by a gravimetric contact-free measurement method. Finally, a mixture of neutral test substances was used to evaluate the continuous separation efficiency and to fractionate the single substances under process-like conditions. The separation results were detected by an inline UV-Vis detection cell and the analysis of the single fractions was performed by an analytical electrochromatograph. The results indicate uniform electroosmotic flow as well as successful separation and fractioning of a neutral test mixture. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09307516
- Volume :
- 36
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Chemical Engineering & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 87820570
- Full Text :
- https://doi.org/10.1002/ceat.201200560