Gulaboski, Rubin and Pereira, Carlos M. and Cordeiro, M Natália D S and Bogeski, Ivan and Silva, A. Fernando (2005) Enzymatic formation of ions and their detection at a three-phase electrode. Journal of Solid State Electrochemistry, 9 (6). pp. 469-474. ISSN 1432-8488
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Abstract
An electrochemical method for the detection
of enzymatically created anions is described that uses a
thin-film electrode with decamethylferrocene as an
electroactive redox probe. The enzymatic oxidation of
glucose with enzyme glucose oxidase produces gluconic
acid as a final product. The oxidation of decamethylferrocene
dissolved in the thin-nitrobenzene film, that is
spread on the working graphite electrode and submerged
in the aqueous solution containing glucose and glucose
oxidase, is followed by the up-take of gluconate anions
from the aqueous phase to nitrobenzene. The peak
currents of the square-wave voltammetric responses of
that system are a linear function of the glucose concentration
in the milimolar range from 0.1 mmol/L to
0.7 mmol/L (R2=0.994).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | glucose, electrochemical sensor, ion transfer across biomimetic membranes |
| Subjects: | Medical and Health Sciences > Basic medicine Natural sciences > Biological sciences Natural sciences > Chemical sciences Natural sciences > Physical sciences |
| Divisions: | Faculty of Agriculture |
| Depositing User: | Rubin Gulaboski |
| Date Deposited: | 31 Oct 2012 13:14 |
| Last Modified: | 05 Nov 2012 13:23 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/155 |
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