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CE and CEC
Evaluation of the performance of single-walled carbon nanohorns in capillary electrophoresis
Article first published online: 23 APR 2010
DOI: 10.1002/elps.200900628
Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Jiménez-Soto, J. M., Moliner-Martínez, Y., Cárdenas, S. and Valcárcel, M. (2010), Evaluation of the performance of single-walled carbon nanohorns in capillary electrophoresis. ELECTROPHORESIS, 31: 1681–1688. doi: 10.1002/elps.200900628
Publication History
- Issue published online: 18 MAY 2010
- Article first published online: 23 APR 2010
- Manuscript Accepted: 8 FEB 2010
- Manuscript Revised: 21 JAN 2010
- Manuscript Received: 22 OCT 2009
Funded by
- Spanish DGICyT. Grant Number: CTQ2007-60426
- University of Cordoba
- Spanish Ministry of Science and Innovation. Grant Number: AP2007-02597
- Abstract
- Article
- References
- Cited By
Keywords:
- Carbon nanohorns;
- CEC;
- Stationary phase;
- Vitamins
Abstract
This paper describes for the first time the use of single-walled carbon nanohorns (SWNHs) as pseudostationary and stationary phases for EKC and CEC, respectively, taking advantage of their characteristic features, such as conical-end termination, formation of spherical assemblies dahlia-flower like superstructure and easy functionalization. The use of SWNHs as pseudostationary phase for EKC required the study of their dispersion in different surfactants as well as their compatibility with the electrophoretic system. The carboxylation and subsequent immobilization of carboxylated SWNHs in fused-silica capillary to obtain useful, reproducible and stable stationary phases for CEC has also been investigated, with promising results. The electrophoretic separations obtained for water-soluble vitamins in both modalities (EKC and CEC) have been systematically compared with those obtained with single-walled carbon nanotubes.