Electrochemical Reduction Bahaviour of Vinclozolin Fungicide at Platinum Electrode

Abstract

The electrochemical behavior of vinclozolin [3-(3,5-dichlorophenyl)-5-methyl-5-vinyl-1,3 oxazolidine-2,4-dion] in dimethylsulfoxide was performed by cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The main decomposition pathway included in the cleavage of chlorine atoms at platinum electrode. The general reduction mechanism of this compound has been suggested based on the results obtained. The peak potential and peak current were found to be depending on pH of the buffer solution. The measuring system response was linear over the vinclozolin concentration range from 1.0×10-3 to 5.0×10-7 mol L-1 and the detection limit (LOD) achieved was 1.1×10-8 mol L-1 (2.5 µg L-1) at pH 4.0. Vinclozolin was determined in spiked serum sample.

Electroreductive Remediation of Halogenated Environmental Pollutants

“…In subsequent research, Hromadová and co-workers observed that the electroreductions of 12 – 14 at a mercury cathode in DMSO/TBAPF 6 involve cleavage of the carbon–chlorine bonds and formation of host–guest complexes of cyclodextrin. Sreedhar and colleagues , investigated the reduction of 12 at both mercury and platinum cathodes over a wide pH range to gain insight into the mechanism. From an investigation of the reduction of 14 in a mixture of Britton–Robinson buffer (pH 2.0–6.0) with DMF, Sreedhar and co-workers concluded that each carbonyl moiety undergoes a two-electron reduction.…”