Electrochemical analysis method, associated arrangements and...

Details Electrochemical analysis method, associated arrangements and... Electrochemical analysis method, associated arrangements and...

G - Physics

01

N

G01N 27/403 (2006.01)

Patent

CA 2430044

The aim of the invention is to improve the known redox (re)cycling method in terms of the measurement technique in such a way that the redox potential created by a redox pair is measured on a reference electrode in an electroless manner. A configuration adapted to said method contains an electrode system consisting of at least three electrodes: one working electrode, one counter electrode and one reference electrode. According to the invention, the reference electrode (R) is arranged in such a way that it is adjacent to at least partial areas of the two other electrodes (Wox, Wred, C), and preferably, at an equal distance from said partial areas. In terms of redox recycling, said electrode system is suitable, for example, for detecting enzyme-coupled identification reactions, but also for measuring an oxygen partial pressure (pO2) or hydrogen peroxide (H2O2).

L'invention vise à améliorer le procédé connu de recyclage redox en ce qui concerne la technique de mesure, par la mesure sans courant du potentiel redox formé par un couple redox au niveau d'une électrode de référence. Un agencement correspondant à ce procédé contient un système à au moins trois électrodes, comprenant au moins une électrode de travail, une contre-électrode et une électrode de référence. Selon l'invention, l'électrode de référence (R) est placée de façon à être adjacente à au moins des zones partielles des deux autres électrodes (W¿ox?, W¿red?, C), et de préférence à égale distance de ces zones partielles. Le système d'électrodes convient dans le cadre du recyclage redox, par exemple, à la détection de réactions d'identification couplées à une enzyme, mais également à la mesure d'une pression partielle d'oxygène (pO¿2?) ou du peroxyde d'hydrogène (H¿2?O¿2?).

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