Electrochemical detector based on sol-gel-derived carbon composite material for capillary electrophoresis microchips.

Journal Article (Journal Article)

An on-chip disk electrode based on sol-gel-derived carbon composite material could be easily and reproducibly fabricated. Unlike other carbon-based electrodes reported previously, this detector is rigid, convenient to fabricate, and amenable to chemical modifications. Based on the stable and reproducible characters of this detector, a copper particle-modified detector was developed for the detection of carbohydrates which extends the application of the carbon-based electrode. In our experiments, the performance of the new integrated detector for rapid on-chip measurement of epinephrine and glucose was illustrated. Experimental procedures including the fabrication of this detector, the configuration of separation channel outlet and electrode verge, and the performance characteristics of this new electrochemical detector were investigated.

Full Text

Duke Authors

Cited Authors

  • Sun, X; Yan, J; Yang, X; Wang, E

Published Date

  • October 2004

Published In

Volume / Issue

  • 25 / 20

Start / End Page

  • 3455 - 3460

PubMed ID

  • 15490438

International Standard Serial Number (ISSN)

  • 0173-0835

Digital Object Identifier (DOI)

  • 10.1002/elps.200305967


  • eng

Conference Location

  • Germany