Journal
ANALYTICA CHIMICA ACTA
Volume 584, Issue 2, Pages 244-251Publisher
ELSEVIER
DOI: 10.1016/j.aca.2006.11.064
Keywords
phenolic compounds; carbon electrodes; microchip; capillary electrophoresis; electrochemical detection
Categories
Ask authors/readers for more resources
A simple method to fabricate cylindrical carbon electrodes for use in capillary electrophoresis (CE) microchips is described. The electrodes were fabricated using a metallic wire coated with carbon ink. Several experimental variables were studied in order to establish the best conditions to fabricate the electrode. Finally, the electrodes were integrated in a poly(dimethylsiloxane) microchip and used for the analysis of phenolic compounds. Using the optimum conditions, the analysis of a mixture of dopamine, epinephrine, catechol, and 4-aminophenol was achieved in less than 240 s, showing good linear responses (R-2 = 0.999) in the 0.1-190 mu M range, and limits of detection (without the use of stacking or a decoupler) of 140 and 105 nM for dopamine and epinephrine, respectively. (c) 2006 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available