Improved electrochemical cell

G - Physics – 01 – N

Patent

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Details

G01N 27/403 (2006.01) G01N 27/30 (2006.01) G01N 27/49 (2006.01)

Patent

CA 2284532

The invention relates to an amperometric electrochemical cell having a first insulating substrate (1) carrying a first electrode (2), a second insulating substrate (11) carrying a second electrode (10), said electrodes being disposed to face each other and spaced apart by less than 500 µm, and defining a sample reservoir (4) therebetween, and wherein at least one, and preferably both, insulating substrates and the electrode carried thereon include an electromagnetic radiation transmissive portion in registration with said reservoir. The walls of the electrochemical cell (2, 12) may be formed from a thin metallic portion (3) on a transparent substrate (1). Such cells are useful in providing visual confirmation of the validity of the electrochemical measurement.

Cette invention se rapporte à une cellule électrochimique ampérométrique comportant un premier substrat (1) isolant porteur d'une première électrode (2), un second substrat (2) isolant porteur d'une seconde électrode (10), lesdites électrodes étant disposées de manière à se faire face et à être distantes de moins de 500 mu m, et définissant entre ces substrats un réservoir à échantillon (4). Dans cette cellule, au moins un des substrats isolants, et de préférence les deux substrats, ainsi que l'électrode associée comportent une partie émettrice de rayonnement électromagnétique coïncidant avec ledit réservoir. Les parois de la cellule électrochimique (2, 12) peuvent être fabriquées à partir d'une partie métallique mince (3) disposée sur un substrat (1) transparent. De telles cellules permettent de délivrer une confirmation visuelle de la validité de la mesure électrochimique.

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