کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6616877 | 459625 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dimethomorph electrooxidation: Analytical determination in grape-derived samples and mechanistic aspects
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 107, 30 September 2013, Pages 350-357
Journal: Electrochimica Acta - Volume 107, 30 September 2013, Pages 350-357
نویسندگان
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,