Abstract
A new, simple, and fast method is described for determining selenium based on a silver wire electrode flow-through voltammetric detector. A comparison was done between the sensitivity of disk silver, mercury-modified glassy carbon, and mercury-modified gold electrodes. The response of the flow-through voltammetric detector was evaluated with respect to each electrode’s operating potential and pH in direct current mode. The limit of detection (3s) for Se(IV) was below 0.01 mg/L. The flow-through system does not need deposition times and the organic matter does not need to be removed before determining selenium in river water.
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Wang, LH., Shan, XE. Electrochemical reduction of selenium on a silver electrode and its determination in river water. J Anal Chem 71, 917–925 (2016). https://doi.org/10.1134/S1061934816090161
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DOI: https://doi.org/10.1134/S1061934816090161