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@article{1416480,
author = {Hadjixenis, Antonios P. and Hrbáč, Jan and Prodromidis, Mamas},
article_number = {září 2018},
doi = {http://dx.doi.org/10.1016/j.snb.2018.04.066},
keywords = {Bipolar electrochemistry; Bipolar electrode; Visual detection; Ascorbic acid; Hydrogen peroxide; Portable analytical device},
language = {eng},
issn = {0925-4005},
journal = {Sensors and Actuators B: Chemical,},
title = {Bipolar electrochemical detection of reducing compounds based on visual observation of a metal electrodeposited track at the onset driving voltage},
url = {http://dx.doi.org/10.1016/j.snb.2018.04.066},
volume = {268},
year = {2018}
}
TY - JOUR
ID - 1416480
AU - Hadjixenis, Antonios P. - Hrbáč, Jan - Prodromidis, Mamas
PY - 2018
TI - Bipolar electrochemical detection of reducing compounds based on visual observation of a metal electrodeposited track at the onset driving voltage
JF - Sensors and Actuators B: Chemical,
VL - 268
IS - září 2018
SP - 529-534
EP - 529-534
SN - 09254005
KW - Bipolar electrochemistry
KW - Bipolar electrode
KW - Visual detection
KW - Ascorbic acid
KW - Hydrogen peroxide
KW - Portable analytical device
UR - http://dx.doi.org/10.1016/j.snb.2018.04.066
N2 - This work reports on a new bipolar electrochemistry based device for the detection of reducing compounds that are oxidized at the anode compartment of a “closed” bipolar electrode cell by recording the onset driving voltage at which an electrodeposited metal track, being visible by the unaided eye, is formed at the cathode pole. The concept is demonstrated for the determination of ascorbic acid and hydrogen peroxide by using an acidic solution of copper(II) chloride, while the underlying theory is explained. The onset driving voltage of the indication event (formation of the metal track) is found to be dependent on the concentration of the targets. Compared with the existing bipolar electrochemistry based analytical methods, the proposed method: i) introduces for the first time the onset driving potential as a measure of the target concentration, and ii) does not require extra instrumentation or devices for measuring the reporting event (intensity of emitted light, fluorescence or electrode’s length at the sub mm level). Along with its inherent advantages of low cost and simplicity it paves the way for the development of low-cost, portable analytical devices for reducing species and, potentially, for the development of biosensors based on oxidase enzymes
ER -
HADJIXENIS, Antonios P., Jan HRBÁČ and Mamas PRODROMIDIS. Bipolar electrochemical detection of reducing compounds based on visual observation of a metal electrodeposited track at the onset driving voltage. \textit{Sensors and Actuators B: Chemical,}. 2018, vol.~268, září 2018, p.~529-534. ISSN~0925-4005. Available from: https://dx.doi.org/10.1016/j.snb.2018.04.066.
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