نتایج جستجو برای: square wave voltammetry swv

تعداد نتایج: 347835  

Journal: :iranian journal of pharmaceutical research 0
sadegh akbari chermini young researchers club, branch, majlesi branch, islamic azad university, isfahan, iran hassan karimi-maleh graduate university of advanced technology, kerman, iran mohsen keyvanfard department of chemistry, majlesi branch, islamic azad university, isfahan, iran

the electrocatalytic oxidation of captopril (cap) was studied by modified carbon nanotubes paste electrode in the presence of isoproterenol (ispt) using cyclic voltammetry (cv), chronoamperometry and square wave voltammetry (swv). also, the values of catalytic rate constant (k), and electron transfer coefficient (α) for cap were calculated. the mechanism of ca electrochemical behavior at the mo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان همدان - دانشکده علوم 1393

در این کار به منظور اندازه گیری هورمون رشد در نمونه های سرم خون انسان و نمونه های دارویی توسط یک الکترود پلاتین و تبدیل آن به یک حسگر سطح الکترود پلاتین توسط روش الکتروپلیمریزاسیون اصلاح گردید لایه اصلاح گر ایجاد شده روی سطح الکترود مذکور خاصیت الکتروشیمیایی و حساسیت آن را نسبت به هورمون رشد انسانی به مراتب افزایش داد و در نتیجه این الکترود از زمان پاسخ دهی کوتاه حد تشخیص پایین دقت و گزینش پذیر...

In the present study, magnetic core-shell manganese ferrite nanoparticles (MCMNP) were synthesized and used for construction of a magnetic core-shell manganese ferrite nanoparticles modified screen-printed carbon electrode (MCSNP-SPCE). Cyclic voltammetry was used to study the electrochemical behavior of chlorpromazine (CPZ) and its determination was conducted by applying square wave voltammetr...

The electrocatalytic oxidation of captopril (CAP) was studied by modified carbon nanotubes paste electrode in the presence of isoproterenol (ISPT) using cyclic voltammetry (CV), chronoamperometry and square wave voltammetry (SWV). Also, the values of catalytic rate constant (k), and electron transfer coefficient (α) for CAP were calculated. The mechanism of CA electrochemical behavior at the mo...

A new sensitive, selective and nonexpensive electrochemical sensor was developed for electrocatalyticdetermination of glutathione (GSH)in pharmaceutical and biological samples. GSH is a tripeptide thiol present in all eukaryotic and probiotic cells. A voltammetric studyof GSH has been carried out at the surface of carbon paste electrode modified with multiwall carbon nanotubes(MWCNTPE) in the p...

2014
Mara A. Fernández Fabio Zuluaga Manuel N. Chaur M. A. Fernández F. Zuluaga M. N. Chaur

Herein is reported the preparation of a new triphenylamine derivative, the tris( ́4-formylbiphenyl-4-yl) amine (TFBA). This compound exhibits optoelectronic properties suitable for its use in Dye-Sensitized Solar Cells (DSSCs) and light emitting diodes. The electrochemical properties were studied by cyclic voltammetry (CV) and square wave voltammetry (SWV). At the same time, the symmetrical chem...

2013
ALEKSANDAR R. MLADENOVIĆ VLADISLAVA M. JOVANOVIĆ SLOBODAN D. PETROVIĆ MILKA L. AVRAMOV IVIĆ

The determination of clopidogrel, an antiplatelet agent, was performed at a gold electrode in pH 3.7 acetate buffer using cyclic voltammetry (CV) and square wave voltammetry (SWV). Each voltammogram was characterized by the well defined peak at approximately 1.0 V. The current of anodic stripping peak exhibited a linear dependence on the clopidogrel concentration in the range from 317.89 to 935...

2010
Valentin Mirčeski Dariusz Guziejewski Sławomira Skrzypek Witold Ciesielski

Methidathion, a non-systemic organophosphorous insecticide and acaricide is studied at the hanging mercury drop electrode under cathodic stripping mode by means of cyclic and square-wave voltammetry (SWV). Its electrode reaction is analyzed in the light of recent theory of cathodic stripping processes of insoluble salts of SWV. Its complex electrode mechanism is described by an electrode reacti...

Journal: :International journal of pharmaceutical investigation 2022

Background: This research was focused on the development of a quick, simple, precise, and cost-effective voltammetric method for quantifying dosulepin. Materials Methods: The antidepressant drug (dosulepin) assessed in pharmaceutical formulations using square wave (SWV) Differential pulse (DPV) techniques at glassy carbon potentiometric working electrodes (GCE). Results: Dosulepin demonstrated ...

Journal: :Nanoscale 2012
Shimaa Eissa Mohammed Zourob

A novel graphene-based voltammetric immunosensor for sensitive detection of okadaic acid (OA) was developed. A simple and efficient electrografting method was utilized to functionalize graphene-modified screen-printed carbon electrodes (GSPE) by the electrochemical reduction of in situ generated 4-carboxyphenyl diazonium salt in acidic aqueous solution. Next, the okadaic acid antibody was coval...

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