AI Article Synopsis
- A rapid and straightforward electroanalytical method for detecting Sb(III) using a boron-doped diamond electrode (BDDE) has been developed.
- The optimal detection medium was found to be 6mol/L HClO, and differential pulse anodic stripping voltammetry (DPASV) was performed under specific conditions for accurate measurement.
- The method showed a low detection limit of 1.08 × 10mol/L and was successfully tested on natural water samples from former antimony mines.
Article Abstract
Very simple and fast electroanalytical method for the detection Sb(III) on chemically unmodified boron-doped diamond electrode (BDDE) has been developed. Voltammetric behavior of antimony was investigated in various acidic supporting electrolytes and the most suitable medium for the determination of Sb(III) on bare BDDE has been 6molL HClO solution. The analytical performance was studied with differential pulse anodic stripping voltammetry (DPASV) with optimized conditions (deposition potential -1V vs. Ag/ AgCl and deposition time 240s). An analysis of possible effects due to the presence of other metal ions (especially As(III)) in the solution was eliminated using NaHPO as supporting electrolyte with addition EDTA as selective complexing agent for Sb(III). Speciation of antimony was also investigated. The detection limit of this analytical strategy achieved value of 1.08 × 10molL. The proposed method was validated and applied for natural water from former antimony mines as real samples.
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| http://dx.doi.org/10.1016/j.talanta.2017.10.042 | DOI Listing |
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