The fabrication and characterization of boron-doped diamond
microelectrodes for use in electrochemical detection
coupled with capillary electrophoresis (CE-EC) is
discussed. They exhibited low and stable background
currents and sigmoidally shaped voltammetric
curves for cysteine, cystine and Fe(CN)63-/4- .
Evaluation of the CE-EC
system and the electrode performance were accomplished
using a 10 mM borate buffer, pH 8.8, run
buffer, and a 70-cm-long fused-silica capillary (10-mm
i.d.) with seven sulfur-containing amino acids
(methionine, cysteine, cystine, homocysyeine, homocystine,
glutathionine, glutathionine disulfide) as test analytes.
Reproducible separation (elution time) and detection (peak
current) of seven sulfur-containing amino acids were observed with response precisions of 5% or less.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0802104-153250 |
| Date | 02 August 2004 |
| Creators | Liu, Jung-chung |
| Contributors | Shiuh-Jen Jiang, Tai-Fa Young, Tai-Sung Hsi |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0802104-153250 |
| Rights | withheld, Copyright information available at source archive |
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