Abstract
The rotating disc electrode has been adapted for flow-through cell anodic stripping voltammetry in a flow-through cell. The enhanced sensitivity (compared with that obtained with the solution flowing past a stationary electrode) is the result of higher plating efficiency. During the plating period, mass transfer to the electrode is governed by electrode rotation; peak currents are unaffected by solution flow rate. A continuous deaeration system for solution flow rates up to 100 ml min -1 is described. The method is characterized by extreme simplicity, stability and precision, and is suitable for in situ monitoring of heavy metals in aqueous samples.
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