ChemInform Abstract: Electrochemical Reduction of Sn(II) at the Dropping Mercury Electrode from Aqueous 1 M Sulfuric Acid and from 0.3 M Phenylsulfonic Acid and Its Inhibition by ENSA-6.

ChemInform ◽  
1987 ◽  
Vol 18 (33) ◽  
Author(s):  
C. J. VAN VELZEN ◽  
M. SLUYTERS-REHBACH ◽  
J. H. SLUYTERS
Keyword(s):  
Sulfuric Acid ◽  
Electrochemical Reduction ◽  
Mercury Electrode ◽  
Dropping Mercury Electrode

Polarographic and voltammetric determination of 6-nitrobenzimidazole and mechanism of its electrochemical reduction

2009 ◽  
Vol 74 (10) ◽  
pp. 1443-1454 ◽  
Author(s):  
Dana Deýlová ◽  
Jiří Barek ◽  
Vlastimil Vyskočil
Keyword(s):  
Electrochemical Reduction ◽  
Mercury Electrode ◽  
Differential Pulse ◽  
Differential Pulse Polarography ◽  
Optimal Conditions ◽  
Pulse Polarography ◽  
Dropping Mercury Electrode ◽  
Constant Potential ◽  
Pulse Voltammetry

Optimal conditions were found for the determination of 6-nitrobenzimidazole by tast polarography (at 1 × 10–4–1 × 10–6 mol l–1), by differential pulse polarography at dropping mercury electrode (at 1 × 10–4–1 × 10–7 mol l–1), and by differential pulse voltammetry at hanging mercury drop electrode (at 1 × 10–4–1 × 10–8 mol l–1). Practical applicability of the developed methods was verified on the determination of 6-nitrobenzimidazole in drinking water (at 10–8 mol l–1). Coulometry at constant potential and cyclic voltammetry were used for elucidation of the mechanism of electrochemical reduction.

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