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MICROFABRICATED ELECTROCHEMICAL ANALYSIS SYSTEM FOR HEAVY METAL DETECTION. (R825511C047)
Citation:
Reay, R. J., A. F. Flannery, C. W. Storment, S. P. Kounaves, AND G. T. Kovacs. MICROFABRICATED ELECTROCHEMICAL ANALYSIS SYSTEM FOR HEAVY METAL DETECTION. (R825511C047). Analytical Chemistry. American Chemical Society, Washington, DC, 34:450-455, (1996).
Description:
A low power, hand-held system has been developed for the measurement of heavy metal ions in aqueous solutions. The system consists of an electrode array sensor, a high performance single chip potentiostat and a microcontroller circuit. The sensor is a microfabricated array of iridium electrodes, onto which a thin film of mercury is electroplated. Quantitative heavy metal analysis is performed using square-wave anodic stripping voltammetry. Measured results show a one part-per-billion sensitivity and multiple use capability.
Author Keywords: Heavy metal; Potentiostat; Square wave anodic stripping voltammetry; Microelectrode