نتایج جستجو برای: Cyclic Voltammetric

تعداد نتایج: 100677  

2014
P. Karuppasamy R. Arumugam M. Ragu M. Ganesan T. Rajendran V. K. Sivasubramanian

Accepted on 25 th August 2014 _____________________________________________________________________________ ABSTRACT Synthesis of symmetrical Schiff bases (1-4) employed by using condensation methods. Purity was monitored by TLC and column chromatographic techniques. In this present study cyclic voltammetric behavior of symmetrical Schiff bases (1-4) were studied. The cyclic voltammetric studie...

Journal: :The Journal of Automatic Chemistry 1989
H. H. J. L. Ploegmakers P. A. Moritz P. J. M. M. Toll W. J. van Oort

A computerized electrochemical detection system for application after HPLC, provided with a cyclic voltammetric oxidative and reductive module, is described for the on-line qualitative determination of electroactive antineoplastic agents and metabolites in urine samples, collected from cancer patients, following intravenous administration.The application of two cyclic voltammetric detection mod...

2013
Hong Men Caiwa Zhang Ke Ning Donglin Chen

A voltammetric electronic tongue to classify five different types of edible oil samples is described in this study. The standard three-electrode configuration composes the sensor array: gold electrode, platinum electrode and saturated calomel electrode. Using cyclic voltammetric measurement, respectively, on five different types of edible oil samples (peanut oil, corn oil, soybean oil, sesame o...

Journal: :iranian journal of pharmaceutical research 0
ameneh amani department of medicinal plants production, nahavand university, nahavand, iran davood nematollahi faculty of chemistry, bu-ali sina university, hamedan,iran bahareh feizy barnaji payame noor university (pnu), hamedan, iran.

with the aim of obtaining information about drug-drug interaction (ddi) between acetaminophen and some of antidepressant drugs (fluoxetine, sertraline and nortriptyline), in the present work we studied the electrochemical oxidation of acetaminophen (paracetamol) in the presence of these drugs by means of cyclic voltammetry and controlled-potential coulometry. the reaction between n-acetyl-p-ben...

2005
Chenguo Hu Yiyi Zhang Gang Bao Yuelan Zhang Meilin Liu Zhong Lin Wang

Voltammetric properties of electrodes made of multiple-walled carbon nanotubes (MWNTs) with different diameters were investigated by cyclic voltammetry. The results indicate that electrodes made of smaller MWNTs exhibit better voltammetric properties. In addition, electrodes made of mixed MWNTs with large diameter distribution possess the best voltammetric properties. The phenomenon can be expl...

2005
Timothy P. Henning

The electrochemical behavior of the cation exchange polymer Nation containing tetrathiafulvalenium (TTF +) on a platinum sub strate is described. The polymer electrode shows cyclic voltammetric behavior similar to that of solid films of TTF on platinum. In 1.0M KBr the oxidized form of the electroactive molecules in the polymer (TTF § forms nonstoichiometric complexes with Br-. The peak potenti...

Banafsheh Norouzi Samaneh Tajjedin

Carbon paste electrode modified with cobalt impregnated zeolite was prepared by mixing of cobalt_zeolite (Co_Z) and graphite powder with different percent. The electrochemical oxidation of cefixime at such electrodes was investigated using the cyclic voltammetric and amperometric techniques. It is not electrochemically active towards cefixime oxidation in 0.1 M phosphate buffer solution (pH=7) ...

2003
Davood Nematollahi Mohammad Rafiee

Catalytic oxidation of thiourea has been studied at alumina modified Pt electrode using cyclic voltammetry. The results indicate the suitability of alumina modified Pt electrode for voltammetric determination of thiourea. The catalytic peak currents are linearly dependent on the thiourea concentration in the range 2.5 × 10 – 7.0 × 10 M. The usefulness of the method was tested in determination o...

2013
AFZAL SHAH ABDUR RAUF ASAD ULLAH AZEEMA MUNIR RUMANA QURESHI IFTIKHAR AHMAD

The redox behaviour of two potential anticancer anthraquinones, 9,10-anthraquinone and 2-chloromethyl-9,10-anthraquinone was investigated in a wide pH range. Cyclic voltammetry based assay was developed for the assessment of the effect of medium, substituents, potential scan rate and number of scans on the voltammetric response of anthraquinones. The electrode reaction mechanism was suggested o...

2003
S. Annapoorani

Some Copper(II)-Manganese(II) trinuclear complexes of Schiff bases derived from 2aminobenzaldehyde and diamines are reported and characterized based on their elemental analyses, conductivity studies, IR, UV-Visible, ESR spectroscopy and cyclic voltammetric studies. The complexes are found to have the formula [Mn(CuL)2](CH3COO)2. The elemental analyses data confirms the formation of trinuclear c...

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