Mercury-Coated Carbon Fiber Microelectrodes: Preparation and Some Properties

摘要

Carbon fiber microelectrodes were made by sealing the fibres into glass and by using heat-shrinkable tubing. The electrodes can be coated with mercury by deposition at -0.9 V vs. SCE from 0.1 M thiocyanate containing 0.05 mM mercury (II) at pH 2.5. Coulometric measurements and square-wave voltammetry were used to establish the properties of the deposit. Conditions for the deposition and stripping of cadmium are outlined.