Development of a micro-electrochemical flow cell using carbon or gold fibres for voltammetric and amperometric analyses

Abstract

The development of a micro-electrochemical flow cell using either carbon or gold fibre electrodes is described. The cell was tested using anodic and adsorptive stripping voltammetric determination of selenium(IV) and chromium(VI), respectively, and for the amperometric detection of salbutamol and hydroquinone after high-performance liquid chromatography. The cell is simple, easy to prepare and is compatible with many electroanalytical systems. The cost of the flow cell is considerably less than conventional electrochemical detectors equipped with glassy carbon macro-electrodes.