Bipolar electrochemical detection of reducing compounds based on visual observation of a metal electrodeposited track at the onset driving voltage

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00102692" target="_blank" >RIV/00216224:14310/18:00102692 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.snb.2018.04.066" target="_blank" >http://dx.doi.org/10.1016/j.snb.2018.04.066</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.snb.2018.04.066" target="_blank" >10.1016/j.snb.2018.04.066</a>

Result language

angličtina

Original language name

Bipolar electrochemical detection of reducing compounds based on visual observation of a metal electrodeposited track at the onset driving voltage

Original language description

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

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Sensors and Actuators B: Chemical,

ISSN

0925-4005

e-ISSN

—

Volume of the periodical

268

Issue of the periodical within the volume

září 2018

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

529-534

UT code for WoS article

000432776800064

EID of the result in the Scopus database

2-s2.0-85046481590