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Variation of zeta-potential with temperature in fused-silica capillaries used for capillary electrophoresis
Citation
Evenhuis, CJ and Guijt, RM and Macka, M and Marriott, PJ and Haddad, PR, Variation of zeta-potential with temperature in fused-silica capillaries used for capillary electrophoresis, Electrophoresis, 27, (3) pp. 672-676. ISSN 0173-0835 (2006) [Refereed Article]
Copyright Statement
© 2006 WILEY-VCH
DOI: doi:10.1002/elps.200500566
Abstract
The temperature variation of electroosmotic mobility corrected for the effects of Joule heating (μEOF0) was employed to investigate the variation of the zeta-potential (ζ) with temperature in fused-silica capillaries. Experimentally determined values for ζ increased at 0.39% per °C, a rate that is about four to five times smaller than reported previously. Experimentally determined values of ζ were directly proportional to the absolute temperature although values were also influenced slightly by changes to the dielectric constant. It was found that the effective charge density at the inner surface of the capillary was independent of temperature.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | capillary electrophoresis, electroosmotic mobility, joule heating, temperature, zeta-potential |
| Research Division: | Chemical Sciences |
| Research Group: | Analytical Chemistry |
| Research Field: | Separation Science |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding Knowledge |
| Objective Field: | Expanding Knowledge in the Chemical Sciences |
| UTAS Author: | Evenhuis, CJ (Dr Christopher Evenhuis) |
| UTAS Author: | Guijt, RM (Dr Rosanne Guijt) |
| UTAS Author: | Macka, M (Professor Mirek Macka) |
| UTAS Author: | Haddad, PR (Professor Paul Haddad) |
| ID Code: | 43024 |
| Year Published: | 2006 |
| Web of Science® Times Cited: | 29 |
| Deposited By: | Chemistry |
| Deposited On: | 2006-08-01 |
| Last Modified: | 2015-10-02 |
| Downloads: | 0 |
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