Abstract
Voltammetric analysis of mercury ions was developed using paste electrodes (PEs) with DNA and carbon nanotube mixed electrodes. The optimized analytical results of the cyclic voltammetry (CV) of the 1∼14 ng L−1 Hg(II) concentration and the square wave (SW) stripping voltammetry of the 1∼12 ng L−1 Hg(II) working range within an accumulation time of 400 seconds were obtained in 0.1 M NH4H2PO4 electrolyte solutions of pH 4.0. For the relative standard deviations of the 1 ng L−1 Hg(II), which were observed at 0.078% (n = 15) at the optimum conditions, the low detection limit (S/N) was pegged at 0.2 ng L−1 (7.37 × 10−13M) for Hg(II). The results can be applied to assays in biological fish kidneys and wastewater samples.
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Ly, S.Y. Voltammetric Assay of Mercury Ion in Fish Kidneys. Toxicol Res. 24, 23–28 (2008). https://doi.org/10.5487/TR.2008.24.1.023
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DOI: https://doi.org/10.5487/TR.2008.24.1.023