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4242256 
Journal Article 
Voltammetric detection of antimony in natural water on cathodically pretreated microcrystalline boron doped diamond electrode: A possibility how to eliminate interference of arsenic without surface modification 
Lukáčová-Chomisteková, Z; Culková, E; Bellová, R; Melicherčíková, D; Durdiak, J; Beinrohr, E; Rievaj, M; Tomčík, P 
2018 
1 
Talanta
ISSN: 0039-9140
EISSN: 1873-3573 
178 
943-948 
English 
29136921 
WOS:000416615500125 
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-1HClO4solution. 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 NaH2PO4as 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 × 10-7molL-1. The proposed method was validated and applied for natural water from former antimony mines as real samples.