Boron-doped diamond as the new electrode material for determination of heavy metals
Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak Technical University, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
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Abstract: Nowadays, the new material – boron-doped diamond represents the perspective electrode material which exhibits wide potential range, lower noise and residual current and can be applied in the various solvents, with good resistance to passivation and high chemical stability. The important part of this paper was the study of Zn(II)/Zn redox system using cyclic voltammetry and optimizing of stripping analysis parameters (deposition potential and time). The low limit of detection (3×10–9 mol L–1) and quantification (1×10–8 mol L–1) indicate that differential pulse anodic stripping voltammetry is a highly sensitive electrochemical method suitable for samples with trace amounts of Zn and other heavy metals. This work also builds on the current trend in the development of new electrode materials and electrochemical study of the environmental samples.
Keywords: heavy metal, boron-doped diamond, cyclic voltammetry, stripping analysis
Full paper in Portable Document Format: acs_0087.pdf
Acta Chimica Slovaca, Vol. 4, No. 2, 2011, pp. 11—17