نتایج جستجو برای: graphene paste electrode

تعداد نتایج: 120356  

A rapid electrochemical technique was developed to determine 8-Hydroxyquinoline (8HQ). In the current study, the anionic surfactant Sodium lauryl sulfate (SLS) was immobilized on the multi-walled carbon nanotube (MWCNT) paste surface for the fabrication of electrode to detect 8HQ in phosphate buffer solution (PBS) of pH 7.0. The response of SLS modified carbon nanotube paste electrode (SLSMCNTP...

A. Benvidi H. Kholghi H. Naeimi M. A. Sheikh-Mohseni M. Mazloum-Ardakani,

In this paper, a nanostructured modified electrode was fabricated by incorporating of 2,2′-[1,9-nonanediylbis(nitriloethylidyne)]-bis-hydroquinone (NNH) as a newly synthesized modifier and TiO2 nanoparticles to the carbon paste (MTCPE) and then was used for the electroanalysis of epinephrine (EP). The electrochemical studies were carried out by using cyclic voltammetry, chronoamperom...

Journal: Nanochemistry Research 2016
Abolfazl Naser-Sadrabadi Alireza Khoshroo Mohammad Mazloum-Ardakani,

In the present paper, the use of a novel carbon paste electrode modified by 7,8-dihydroxy-3,3,6-trimethyl-3,4-dihydrodibenzo[b,d]furan-1(2H)-one (DTD) and oxidized multi-walled carbon nanotubes (OCNTs) is described for determination of levodopa (LD), acetaminophen (AC) and tryptophan (Trp) by a simple and rapid method. At first, the electrochemical behavior of DTD is studied, then, the mediated...

In the present paper, electrochemical methods were used to investigate the behavior of ascorbic acid at a carbon paste electrode modified with 2,2'-((1E)-(1,2 phenylenebis(azanylylidene)) bis(methanylylidene))bis(benzene-1,4-diol) (PBD) and oxidized multiwall carbon nanotubes. The modified carbon paste electrode showed high electrocatalytic activity toward ascorbic acid; the current was enhance...

ژورنال: مواد پرانرژی 2012
سبحان منش, باقر, نجفی, مصطفی,

  Electrochemical behavior of a Prussian blue -modified carbon paste electrode and their applications to electrocatalytic activity for hydrazine oxidation. The electrochemical behavior and stability of the modified electrodes as well as electro-oxidation of hydrazine at the electrode were investigated using cyclic voltammetry method. At the modified electrode, the oxidation of hydrazine occurs ...

The electrochemical behavior of a modified carbon paste electrode (MCPE) with N,N′ethylenbis(salicylideneiminato)copper(II) complex ([Cu(II)-Salen]) was investigated as a newsensor for cystein. The Britton-Robinson buffer with pH 5, 10% modifier in electrode, potentialscanning rate of 20 mVs-1 and puls height of 50 mV were used as the optimum condition for thedetermination of cysteine using car...

2017
Fei Lu Gerardine G. Botte Eva Pellicer

A novel graphene-coated Ni electrode was developed in this investigation to improve corrosion resistance while unexpectedly enhancing the ammonia generation rate in the electrochemically induced urea to ammonia (eU2A) process, which is an electrochemical onsite ammonia generation method. The development of the electrode is crucial for the eU2A reactions since in the ammonia generation process, ...

Journal: :analytical and bioanalytical chemistry research 2014
jahan bakhsh raoof abolfazl kiani reza ojani roudabeh valiollahi

the electrochemistry of banana tissues on a carbon paste electrode modified with multi-walled carbon nanotubes (mwcnts) is presented. cyclic voltammetry is applied to investigate the direct electrochemistry of banana tissues i.e. a source of polyphenol oxidase (ppo). a redox couple with an anodic and counterpart cathodic peak is obtained. the influence of various parameters such as ph, scan rat...

Journal: :journal of advanced medical sciences and applied technologies 0
ebrahim honarmand department of chemistry, faculty of science, university of qom, qom, iran mohammad hassan motaghedifard department of chemistry, faculty of science, university of qom, qom, iran ali mohammad amani department of medical nanotechnology, school of advanced medical sciences and technologies, shiraz university of medical sciences, shiraz, iran; department of chemistry shiraz university of technology shiraz iran c) nuclear science and technology research institute, p.o. box 11365/8486, tehran, iran

a multi-walled carbon nanotube modified paste electrode (mwcn-pe) was used for determination of promethazine (pmz) in drug formulations and blood plasma by cyclic voltammetry (cv) and differential pulse voltammetry (dpv) methods. results revealed that the mwcn-pe shows an electrocatalytic activity toward the anodic oxidation of pmz by a marked enhancement in the current response in buffered sol...

2014
Sophia Karastogianni Stella Girousi

In this article, the electrochemical behavior of triethanolimine is described with a carbon paste electrode. A differential pulse voltammetric method was also developed for the determination of triethanolamine as an application to electroanalysis at a carbon paste electrode. The resultant voltammograms have revealed the irreversible electrochemical process that can be utilized to quantify the s...

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