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Fluorinated ethylenepropylene copolymer as a potential capillary material in CE

Citation

Evenhuis, CJ and Yang, W and Johns, CA and Macka, M and Haddad, PR, Fluorinated ethylenepropylene copolymer as a potential capillary material in CE, Electrophoresis, 28, (19) pp. 3477-3484. ISSN 0173-0835 (2007) [Refereed Article]

DOI: doi:10.1002/elps.200700171

Abstract

In this work, a new generation UV-transparent polymer, fluorinated ethylenepropylene copolymer (FEP) exhibiting a low degree of crystallinity, extruded in dimensions similar to the most commonly used CE capillaries of ∼80 μm id and about 360 μm od was investigated for its use as a CE capillary. FEP is transparent down to the low-UV region, and as fluorinated polymers in general are good electrical insulators and exhibit reasonable heat conductivity, it has considerable potential as a material for electrodriven analysis in capillary or microchip formats. The FEP capillary has been characterised with regard to some important aspects for its use as a CE capillary, including its profile of EOF versus pH, as well as procedures for manipulating EOF by coating the inner capillary wall with various semi-permanent and dynamic layers. The FEP capillaries were tested and compared with fused-silica capillary for the separation of inorganic and small organic ions using conditions involving direct and indirect detection in the low-UV region. Finally, advantages of the use of the FEP capillary for simultaneous detection of a mixture containing nine inorganic cations and anions using indirect photometric detection with a movable light-emitting diode (LED) detector and a novel electrolyte are demonstrated. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Item Details

Item Type:Refereed Article
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:Yang, W (Mr Wen-Chu Yang)
Author:Johns, CA (Dr Cameron Johns)
Author:Haddad, PR (Professor Paul Haddad)
ID Code:51225
Year Published:2007
Web of Science® Times Cited:5
Deposited By:Chemistry
Deposited On:2007-08-01
Last Modified:2009-08-13
Downloads:0

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