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: Gallic acid

Adsorptive Stripping Voltammetric Determination of Gallic Acid Using an Electrochemical Sensor Based on Polyepinephrine/glassy Carbon Electrode and its Determination in Black Tea Sample

2018-10-12 14:34:29 الكلمات المفتاحية Gallic acid, Epinephrine, Polyepinephrine, Cyclic voltammetry, Square wave voltammetry,
Adsorptive Stripping Voltammetric Determination of Gallic Acid Using an Electrochemical Sensor Based on Polyepinephrine/glassy Carbon Electrode and its Determination in Black Tea Sample
An efficient adsorptive stripping voltammetric (AdSV) method for determination of gallic acid, GA, was developed by using an electrochemical sensor based on polyepinephrine/glassy carbon electrode, PEP/GCE. Modification of GCE with PEP was done by electropolymersation of epinephrine, EP, in 0.2 M phosphate buffer solution using cyclic voltammetry, cv. A well-defined redox cv wave of epinephrine in potential range of -0.10 ... 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

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

2018-10-14 16:20:34 الكلمات المفتاحية Gallic acid,
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

Adsorptive Stripping Voltammetric Determination of Gallic Acid Using an Electrochemical Sensor Based on Polyepinephrine/glassy Carbon Electrode and its Determination in Black Tea Sample

2018-10-14 16:24:43 الكلمات المفتاحية Gallic acid,
Adsorptive Stripping Voltammetric Determination of Gallic Acid Using an Electrochemical Sensor Based on Polyepinephrine/glassy Carbon Electrode and its Determination in Black Tea Sample
An efficient adsorptive stripping voltammetric (AdSV) method for determination of gallic acid, GA, was developed by using an electrochemical sensor based on polyepinephrine/glassy carbon electrode, PEP/GCE. Modification of GCE with PEP was done by electropolymersation of epinephrine, EP, in 0.2 M phosphate buffer solution using cyclic voltammetry, cv. A well-defined redox cv wave of epinephrine in potential range of -0.10 ... إقراء المزيد

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