emad.newair

Dr. Emad F. Newair

استاذ - Analytical Chemistry & Director of the Measurement and Evaluation Center

كلية العلوم

العنوان: Sohag University

133

إعجاب
3 4 4 12 4 7 2K 726
108

أضيف حديثا
  • المقررات الدراسية 3
  • ملحقات المقررات الدراسية 4
  • واجبات المقررات الدراسية 4
  • المنشورات و المؤلفات 12
  • ساعات مكتبية 4
  • الاعلانات 7
  • عدد الملفات المرفوعه 8
  • كل التنزيلات 57

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: Chronocoulometry

Electrochemical behaviour of antioxidants: Part 2. Electrochemical oxidation mechanism of quercetin at glassy carbon electrode modified with multi-wall carbon nanotubes

2018-10-13 05:20:28 الكلمات المفتاحية Quercetin, Cyclic voltammetry, Chronocoulometry, Digital simulation,
Electrochemical behaviour of antioxidants: Part 2. Electrochemical oxidation mechanism of quercetin at glassy carbon electrode modified with multi-wall carbon nanotubes
Electrochemical oxidation mechanism of quercetin was investigated at glassy carbon electrode modified with multi-wall carbon nanotubes in aqueous 0.2 M phosphate solutions with different pHs. The investigation was carried out using cyclic voltammetry, double potential step chronoamperometric and chronocoulometric techniques. It was found that the oxidation mechanism proceeds in sequential steps, related with the five-hydroxyl groups in the three aromatic ... إقراء المزيد

Electrochemical behavior of antioxidants: I. Mechanistic study on electrochemical oxidation of gallic acid in aqueous solutions at glassy-carbon electrode

2018-10-13 05:23:58 الكلمات المفتاحية Gallic acid, Cyclic voltammetry, Chronoamperometry, Chronocoulometry, Convolution–deconvolution, Digital simulation,
Electrochemical behavior of antioxidants: I. Mechanistic study on electrochemical oxidation of gallic acid in aqueous solutions at glassy-carbon electrode
Mechanism of electrochemical oxidation of gallic acid in aqueous phosphate buffer solutions of different pH’s was studied at glassy-carbon electrode. The study was performed using cyclic, convolution–deconvolution sweep voltammetry, chronoamperometry and chronocoulometry. It gives two irreversible diffusion-controlled cyclic voltammetric waves at the entire range of pH. The electrochemical oxidation mechanism was proposed to be an ECEC-first order mechanism in which ... إقراء المزيد

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