论文信息 - Remote Electrochemical Sensor for Monitoring Trace Mercury

Remote Electrochemical Sensor for Monitoring Trace Mercury

A newly designed remote probe has been developed for stripping measurements of trace mercury at large sample-instrument distances. Various gold electrodes, stripping modes, and operation conditions have been optimized to meet the requirement of remote monitoring of mercury. The favorable stripping potentiometric response obtained following 0.5–1.0 min deposition, leads to a rapid detection of low ppb mercury concentrations, and offers a fast warning capability. The optimized protocol offers a low detection limit ( of 0.3/mu;g/L with 5 min deposition) and good precision (RSD of 3.9 % for n = 100). Due to its inherent sensitivity, simplicity, stability, and smaller dimensions the new probe is well suited for in situ monitoring of trace mercury in natural waters.

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