emad.newair

Dr. Emad F. Newair

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

Faculty of science

Address: Sohag University

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Dr. Emad F. Newair is an Associate Professor of Analytical Chemistry. He received his Ph.D. in Analytical Chemistry from Sohag University, Egypt. Dr. Newair’s research under supervision of Professor Refat Abdel-Hamid has received a million of Egyptian pounds in funding from the Science, Technology & Innovation Funding Authority (STDF, Grant number 5361). He is interested in Electrochemistry of Polyphenol Antioxidants, Electrochemically Modified Electrodes, Liquid Chromatography/Mass Spectroscopy, and Electrochemical Synthesis of Conducting Polymer. In 2012, he received a short-term scholarship to Monash University, Australia for training on the application of modern electroanalytical techniques. In the period from 2014 to 2016, he received two Post-Doctoral Research Grants to Montpellier-AupAgro, France. In 2022, he was named as a Visiting Fulbright Scholar at the University of Cincinnati, USA. He has over 15 peer-reviewed publications and 10 conference proceedings. Dr. Newair is equally dedicated to his teaching and advising, graduating Ph.D. and M.S. students. He teaches courses in Analytical Chemistry, Electrochemistry and General Chemistry.


2020-06-28 12:18:15
أسئلة إسترشادية لطلاب الفرقة الرابعة بكلية العلوم  مقرر 452&434 ك
ANALYTICAL CHEMISTRY 434 & 452 CHEM 2019/2020 أسئلة إسترشادية لطلاب الفرقة الرابعة بكلية العلوم تاريخ نشر النموذج: 28/6/2020 أستاذ المقرر/ د. عماد نوير Read more

2018-11-10 00:22:59
كيفية التعامل مع نموذج إجابة (Answer Sheet) الأسئلة الموضوعية   لطلاب كلية العلوم
تتكون ورقة الإجابة (Answer Sheet) من سبعة أجزاء رئيسية وسوف نقوم بشرحها كما يلى: Read more

2018-10-14 22:51:27
قياس مدى رضا الطلاب من تدريس المقررات الخاصه بى
https://www.sarahah.com/messages/user/c720935c-92cf-4716-bc25-16367a26484b الرجاء ترك الرساله التى ترغب فى توصيلها لى وسوف اهتم بتنفيذها. Read more

2018-10-14 15:39:58
الفرقة الثانية علوم شعبة الفيزياء والكيمياء
إن شاء الله غدا الإثنين الموافق 15/10/2018 المحاضره هتكون فى مدرج ج من الساعه 12-2 ظهراً. Read more

2018-10-14 05:17:20
بيان بأسماء طلاب المقال والبحث لعام 2018/2019
أسماء طلاب الفرقة الرابعة لماده المقال والبحث لعام 2018/2019 والذى أتشرف بأن أكون مشرفاً عليهم وهم: احمد رجب عباس خلاف كيمياء خاص ساندي سامح سليمان صليب سلمى حاتم محمد عبد الرحمن سماح السيد محمود احمد سمر صفوت سعد شرف شروق فتحى انور بطرس كيمياء وعلم حيوان Read more

2022-06-21 19:21:42 | Keywords Oxidation Mechanism,
Identification of adducts between oxidized rosmarinic acid and glutathione compounds by electrochemistry, liquid chromatography and mass spectrometry
Natural polyphenols are omnipresent and are an integral part of the human diet as well as quinones. Glutathione (GSH) is present in a significant amount inside cells and consequently, GSH conjugates of polyphenols will be encountered in the body. In the current work, voltammetry and liquid chromatography–mass spectrometry were carried out to characterize the reaction mechanism of the electrochemical oxidation ... Read more

Mechanistic Pathways and Identification of the Electrochemically Generated Oxidation Products of Flavonoid Eriodictyol in the Presence of Glutathione
The metabolic oxidation pathways of dietary flavonoid eriodictyol (Er) are not very well-probed. In the present work, the electrochemical oxidation behavior of Er was studied in aqueous Britton-Robinson (B-R) buffer solution using cyclic voltammetry (CV), chronoamperometry (CA), and bulk-electrolysis (BE). The oxidation products and reaction pathways of Er in the absence and the presence of glutathione (GSH) were proposed and ... Read more

Square wave voltammetric analysis of polyphenol content and antioxidant capacity of red wines using glassy carbon and disposable carbon nanotubes modified screen-printed electrodes
The polyphenols present in different French red wines were characterized electrochemically using square wave voltammetry (SWV). The voltammetric measurements were carried out using a glassy carbon electrode and disposable screen-printed carbon electrodes unmodified and modified with single- and multi-walled carbon nanotubes. The single-walled carbon nanotubes-modified screen-printed carbon electrode (SWCNTs-SPCE) showed the best results for the voltammetric analysis of polyphenols in ... Read more

Electrochemical Determination of the Antioxidant Activity in Echinacea Purpurea Roots Using Square Wave Voltammetry
A simple and rapid electrochemical method was established to quantify the total polyphenol (TP) content and assess their antioxidant activity (AA) in roots of three _Echinacea purpurea_ (_E. purpurea_) species using square wave voltammetry (SWV). Individual polyphenol components were identified, and then quantified by ultra‐high performance liquid chromatography coupled with mass spectrometery (UPLC‐MS). Two major polyphenols, chicoric (ChA) and caftaric ... Read more

Mechanism of Chicoric Acid Electrochemical Oxidation and Identification of Oxidation Products by Liquid Chromatography and Mass Spectrometry
Electrochemical oxidation of chicoric acid (ChA) was investigated using cyclic voltammetry and chronoamperometry at a glassy carbon electrode. Chicoric acid generates single quasi‐reversible redox wave in cyclic voltammetry over a wide pH range, and an ECEC‐dimerization mechanism is proposed. Effect of glutathione (GSH) on the electrochemical oxidation of chicoric acid (ChA) was investigated in Britton−Robinson buffer solution. Ultra‐high performance liquid ... Read more

تمرين رقم 2
إختر الإجابة الصحيحة: يحسب القرم الهيدروجينى (PH) عند بداية التفاعل فى معايرة حمض قوى بقاعدة قوية بالمعالدة التالية: (A) pH = -log[H+] (B) [H+] = NaVa – NbVb / (Va+Vb) (C) pOH = -log[OH-] (D) [OH-] = NbVb – NaVa / (Va+Vb) Read more

تمرين رقم 2
CHOOSE THE CORRECT ANSWER: IN STRONG ACID – STRONG BASE TITRATION, THE PH OF MIXTURE AT INITIAL STAGE IS FIND OUT BY FORMULA……............ (A) pH = -log[H+] (B) [H+] = NaVa – NbVb / (Va+Vb) (C) pOH = -log[OH-] (D) [OH-] = NbVb – NaVa / (Va+Vb) Read more

تمرين رقم 1
الرجاء حل التمرين المرفق وتسليمه خلال المحاضره التالية أو إرساله على البريد الإلكترونى التالى: emad.newair@science.sohag.edu.eg Read more

تمرين رقم 1
الرجاء حل هذا التمرين وتسليمه خلال المحاضره القادمه ورقياً أو إرساله على البريد الإلكترونى التالى: emad.newair@science.sohag.edu.eg Read more