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This paper reports an integrated CMOS potentiostat for detection of heavy metal ions in water and other solvents based on electrochemical sensing. The proposed potentiostat features a low input impedance, high sensitivity, high gain and low power transimpedance amplifier front end, with programmable control of electrode potential, thus facilitating continuous bi-directional measurement of reduction-oxidation...
Sulfur-containing decomposition products of thiourea, which are present in thiourea solutions, exert a considerable effect on silver electroreduction rate in these solutions. The technique involving electrode surface renewal by cutting off a thin metal layer directly in the solution at a fixed electrode potential makes it possible to minimize the influence of adsorbed impurities on the rate of the...
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