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1. (WO2017037094) DEVICE FOR ELECTROCHEMICAL DETECTION BY AMPEROMETRY OF AT LEAST ONE ELECTROACTIVE SPECIES IN A LIQUID MEDIUM

Pub. No.:    WO/2017/037094    International Application No.:    PCT/EP2016/070474
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Thu Sep 01 01:59:59 CEST 2016
IPC: G01N 27/27
G01N 27/30
G01N 27/403
G01N 33/18
Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Inventors: KAMOUNI BELGHITI, Dounia
SCORSONE, Emmanuel
Title: DEVICE FOR ELECTROCHEMICAL DETECTION BY AMPEROMETRY OF AT LEAST ONE ELECTROACTIVE SPECIES IN A LIQUID MEDIUM
Abstract:
The invention relates to a device for electrochemical detection by amperometry of at least one electroactive species in a liquid medium. It comprises: a system for electrochemical measurement by amperometry (12); at least two work electrodes (3); at least one reference electrode (4); and at least one counter electrode (5); the work electrodes, the reference electrode and the counter electrode being connected to the electrochemical measurement system in order to allow electrochemical detection by amperometry of said species. The device is characterised in that each work electrode includes an electrically conductive mounting (14) made of doped diamond, having a surface portion covered by a metal catalyst that is different for each work electrode, said metal catalyst being in the form of separate contact pads (13) of nanometric size and being selected from gold, silver, rhodium, osmium, platinum, iridium, palladium, ruthenium and the alloys thereof.