نتایج جستجو برای: square wave voltammetry swv

تعداد نتایج: 347835  

Journal: :Turkish journal of analytical chemistry 2021

The synthesis, spectroscopic and electrochemical properties of the following octa-benzothiazole substituted metal-free (4), cobalt(II) (5) zinc (II) (6) phthalocyanines are reported for first time. novel have been characterized by FT-IR, NMR spectroscopy, electronic spectroscopy mass spectroscopy. Voltammetric analysis benzothiazole group were determined cyclic (CV) square wave voltammetry (SWV...

A novel carbon paste electrode modified with ionic liquid (n-hexyl-3-methylimidazolium hexafluoro phosphate) and magnetic core-shell manganese ferrite nanoparticles (MCSILCPE) was fabricated. The electrochemical study of the modified electrode, as well as its efficiency for electro-oxidation of tryptophan, is described. Cyclic voltammetry (CV), choronoamperometry (CHA) and square wave voltammet...

2009
Karen Wohnrath Dyovani Coelho Jarem R. Garcia Christiana A. Pessoa Carla Eiras

The electrochemical behavior of the herbicide paraquat was studied for an electrode modified with a PANI/CaraiaGum composite by means of square wave voltammetry. It was obtained an analytical curve in the range of 1x10 -7 to 3x10 -4 molL -1 using the following parameters: frequency of 20 Hz, wave amplitude of 80 mV, scan increment of 5 mV, an acetate buffer (pH=10) as electrolyte solution and p...

Journal: :Journal of Solid State Electrochemistry 2023

Abstract Square-wave voltammetry (SWV) is a widely used technique for getting insight into mechanistic and kinetic aspects of various electrochemical reactions. To date, this pulse-voltammetric has been utilized in numerous studies it remains one the most sophisticated methods available. As result its higher sensitivity potential to provide insights similar cyclic electrode mechanisms character...

Journal: :iranian journal of pharmaceutical research 0
bilal yilmaz ataturk university, faculty of pharmacy, head of department of analytical chemistry, 25240 erzurum, turkey. ulvihan cıltas department of analytical chemistry, faculty of pharmacy, ataturk university, selcuk kaban department of analytical chemistry, faculty of pharmacy, ataturk university, bilge kaan akcay department of analytical chemistry, faculty of pharmacy, ataturk university gulsah nazik department of analytical chemistry, faculty of pharmacy, ataturk university

in this study, a simple and reliable square wave voltammetric (swv) method was developed and validated for determination of diclofenac in pharmaceutical preparations and human serum. the proposed method was based on electrooxidation of diclofenac at platinum electrode in 0.1 m tbaclo4/acetonitrile solution. the well-defined two oxidation peaks were observed at 0.87 and 1.27 v, respectively. cal...

Journal: :ChemElectroChem 2021

Cavity MicroElectrodes (CMEs) offer a valuable platform to evaluate the electrocatalytic performance of micro-and nano-particulate materials. The technical factors and physicochemical processes affecting electrochemical response at CMEs are be recognized, specifically, accessibility redox species electrocatalyst surface. With this aim, voltammetric is investigated through joint experimental the...

Journal: :Electrochem 2023

A study of keracyanin chloride (KC) electrochemical behavior in an aqueous buffer solution using screen-printed carbon electrodes (SPCEs) and glassy (GCEs) was performed. Cyclic voltammetry (CV) square-wave (SWV) were used to analyze the response KC under studied conditions. clear redox wave observed for KC, primarily due oxidation catechol 3′,4′-dihydroxyl group its ring B, with a minor from h...

Journal: :Journal of The Electrochemical Society 2021

The electrochemical measurement of concentration in molten chloride salts is a valuable tool for the control existing and potential industrial processes, recycling precious materials energy production. techniques commonly used to measure each techniques’ associated theory are discussed. Practices which improve accuracy precision set forth. Exceptionally accurate precise measurements published l...

Journal: :Journal of Sensor Technology 2022

A simple electrochemical sensor for dopamine detection, is based on molecularly imprinted and electropolymerized over-oxidized polypyrrole (OPPy). The MIP-based electrode obtained by electrocopolymerization of pyrrole (0.1 M) in the presence template molecular (dopamine, DA) (10-3 M). square wave voltammetry (SWV) used detection buffer solution. current peak at MIP was proportional to logarithm...

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