نتایج جستجو برای: electrochemical studies

تعداد نتایج: 1473232  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2009
bothi raja pandian mathur gopalakrishnan sethuraman

acid extract of solanum tuberosum was tested as corrosion inhibitor for mild steel in 1 m hcl and h2so4 media using different techniques: weight loss (in different temperatures viz., 303, 313 and 323 k), potentiodynamic polarization, electrochemical impedance spectroscopy (eis) and sem techniques. the studies reveal that the plant extract act as good inhibitors in both the acid media and better...

Journal: :international journal of environmental research 0
h. hoveidi graduate faculty of environment, university of tehran, tehran, iran h. sid kalal nfcrs, nuclear science and technology research institute, aeoi, p.o. box 11365-3486, tehran, iran g. nabi bidhendi graduate faculty of environment, university of tehran, tehran, iran h. rashedi biotechnology group school of chemical engineering college of engineering, university of tehran p.o.box:11155-4563,tehran, iran d. vafaei mehr university of tehran, aras international campus, aras, iran

furan is a possible human carcinogen in many types of foods. a new and sensitive electroanalytical method for determination of furan has been developed and validated. the best condition forelectrochemical response was obtained with 0.1 m britton-rabinson buffer solution (ph=5) a glassy carbonelectrode (gce) was used as the working electrode, a ag/agcl/ kcl(sat.) electrode served as the referenc...

Journal: :international journal of environmental research 2013
h. hoveidi h. sid kalal g. nabi bidhendi h. rashedi d. vafaei mehr

furan is a possible human carcinogen in many types of foods. a new and sensitive electroanalytical method for determination of furan has been developed and validated. the best condition forelectrochemical response was obtained with 0.1 m britton-rabinson buffer solution (ph=5) a glassy carbonelectrode (gce) was used as the working electrode, a ag/agcl/ kcl(sat.) electrode served as the referenc...

Journal: :physical chemistry and electrochemistry 0
davood kaviani young researchers and elite club, east tehran branch, islamic azad university, tehran, iran majid saghi department of chemistry, faculty of science, arak branch, islamic azad university, arak, iran maryam agha mohammadi department of chemistry, faculty of science, arak branch, islamic azad university, arak, iran mohammad hosein bigtan department of chemistry, faculty of science, arak branch, islamic azad university, arak, iran

the studies performed about electrochemical oxidation 2-amino-4-methylphenol indicate that ortho-quinone yielded through oxidation of this chemical compound was unstable and it could be used as michael acceptor under solvent influences, carrier electrolyte, additives and could be transformed into the various compounds in the form of 1-4 addition michael reaction. based on this, in the paper fir...

Journal: :international journal of iron & steel society of iran 2013
a. fattah-alhosseini

this paper focused on the characterization of electrochemical behavior of a martensitic stainless steel inthe acidic solutions. for this purpose, electrochemical parameters were derived from potentiodynamicpolarization, mott schottky analysis and electrochemical impedance spectroscopy (eis) techniques.the potentiodynamic polarization results showed that corrosion current density of aisi 420 sta...

Journal: :iranian journal of pharmaceutical sciences 0
hossein hamzeiy bpharmacology and toxicology department, faculty of pharmacy, tabriz university of medical sciences, tabriz, iran mehdi saberian aresearch center for pharmaceutical nanotechnology, bpharmacology and toxicology department, faculty of pharmacy, tabriz university of medical sciences, tabriz, iran davoud asgaria research center for pharmaceutical nanotechnology, yadollah omidi research center for pharmaceutical nanotechnology,

electrochemical aptamer-based sensors attract a lot of interest as useful methods because of their low cost, accuracy, sensitivity, and simplicity. an electro-active redox molecule comprises the main part of the electrochemical-based sensors. ferrocene is one of the most popular redox molecule used in biosensor fabrication. but, instability of ferrocenium ion in strong nucleophilic reagents and...

E. Pournamdar H. Nazari L. Nazari Z. Nazari

Simvastatin is a hypolipidemic drug used with exercise, diet and weight – loss to control elevated cholesterol or hypercholesterolemia. It is a member of the Statin class of pharmaceuticals. This paper delives voltammetric techniques is an electrochemical technique used in analytical applications and fundamental studies of electrode mechanism. This review summarizes some of the recent developme...

Davood Kaviani Majid Saghi Maryam Agha Mohammadi Mohammad Hosein Bigtan

The studies performed about electrochemical oxidation 2-amino-4-methylphenol indicate that ortho-quinone yielded through oxidation of this chemical compound was unstable and it could be used as Michael acceptor under solvent influences, carrier electrolyte, additives and could be transformed into the various compounds in the form of 1-4 addition Michael reaction. Based on this, in the paper fir...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

abstract ion selective electrodes (ises) are electrochemical sensors that respond selectivity to the activity of ionic species. an ion-selective electrode is an electrochemical device that uses a thin selective membrane or film as the recognition element, and is an electrochemical half-cell equivalent to other half-cells of the zeroth (inert metal in a redox electrolyte). in common methods o...

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