Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6616877 | Electrochimica Acta | 2013 | 8 Pages |
Abstract
By using square-wave voltammetry (SWV) and a boron-doped diamond electrode (BDDE), it was possible to develop and apply a new electroanalytical procedure for the determination and quantification of dimethomorph (DIM) with a quantification limit of 1.04 Ã 10â6 mol Lâ1. This voltammetric methodology was successfully applied to DIM determination in fresh grapes and red wine samples, with recovery values of 101.0 ± 12.1% and 105.1 ± 10.8% (95% confidence interval). Based on quantum-chemical studies and the data obtained by gas chromatography-mass spectrometry (GC-MS), it can be concluded that the site of oxidation of DIM is the non-aromatic double bond, and that the DIM electrooxidation reaction forms the (4-chlorophenyl)-(3,4-dimethoxyphenyl)methanone as a major product.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Francisco Willian de Souza Lucas, Jefferson Melo do Nascimento, Valder Nogueira Freire, André Luiz Melo Camelo, Elisane Longhinotti, Pedro de Lima-Neto, Adriana Nunes Correia,