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This paper presents an electrochemical microsensor based on ultramicroelectrode array modified with copper nanoparticles to perform trace nitrate detection in potable water. The microsensor is fabricated with standard micromachining technology. As the working-electrode, an ultramicroelectrode array constructed of 421 disk-shaped ultramicroelectrodes provides enhanced electrochemical performance for...
This work mainly describes an electrochemical microsensor based on the reduction of molybdophosphate complex for fast determination of total phosphorus (TP) in water. Compared with the traditional methods for phosphate detection reported previously that used bulk electrodes, this microsensor responds faster, and can be applied to TP detection rather than merely phosphate. Calibration of phosphate...
A micro electrochemical sensor has been developed for total nitrogen (TN) determination in freshwaters. After the digestion process of water samples, nitrate was detected with the microsensor modified by porous copper-clusters and the concentration of TN was calculated by a portable electrochemical system. As the electrocatalyst material, copper was electrodeposited onto the working-electrode of the...
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