Abstract

In this paper, the IrO 2 electrode preparation technique consisting in thermal treatment of pure Ir in air was used in order to produce an IrO 2-based microelectrode-array (TOIROF-MEA) with low capacitive background current. The TOIROF-MEA was characterized using Fe ( CN ) 6 4 - / 3 - as model redox couple. It was found that very low concentrations can be detected; this feature makes TOIROF-MEA suitable for analytical applications.

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