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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
Author:Evenhuis, CJ (Dr Christopher Evenhuis)
Author:Guijt, RM (Dr Rosanne Guijt)
Author:Macka, M (Professor Mirek Macka)
Author:Haddad, PR (Professor Paul Haddad)
ID Code:43024
Year Published:2006
Web of Science® Times Cited:26
Deposited By:Chemistry
Deposited On:2006-08-01
Last Modified:2015-10-02
Downloads:0

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