Differential Pulse Voltammetric Determination of Fulvestrant in Pharmaceutical Dosage Forms and Serum Samples
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Differential pulse voltammetric determination of diclofenac in pharmaceutical preparations and human serum
This article describes a differential pulse voltammetric (DPV) method for the determination of diclofenac in pharmaceutical preparations and human serum. The proposed method was based on electro-oxidation 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. Calibration curves that obtaine...
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Purpose: To investigate the electro-reduction behaviour and determination of ciprofloxacin using a hanging mercury drop electrode. Methods: Cyclic voltammograms of ciprofloxacin recorded in Britton – Robinson buffers pH 2 – 5 exhibit a single irreversible cathodic peak. The dependence of the peak current and peak potential values on buffer (nature, pH and concentration) and accumulation conditi...
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The electroreduction behaviour and determination of cefoperazone using a hanging mercury drop electrode were investigated. Cyclic voltammograms of cefoperazone recorded in universal Britton-Robinson buffers pH 3-6 exhibited a single irreversible cathodic peak. The process was adsorption-controlled. Britton-Robinson buffer 0.04 M pH 4.0 was selected as a supporting electrolyte for quantitative p...
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Febuxostat FEB was determined by differential pulse “DP” adsorptive stripping voltammetry and hanging mercury drop electrode. In 0.04 mol L Britton-Robinson buffer solution, pH 10, an irreversible electrochemical reaction took place at about -350 mV, and the peak current was linearly varied over the concentration range of 12.5-200 ng mL FEB, with correlation coefficients of 0.9995, after 60 s a...
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The behavior of chlordiazepoxide has been studied using dc-polarography at dropping mercury electrode (DME) and cyclic voltammetry at glassy carbon electrode (GCE). In Britton-Robinson buffers, the drug developed three reduction irreversible waves in acidic solutions, and only two waves in alkaline media. The adsorptive stripping voltammetric behavior of chlorodiazepoxide was studied at GCE, an...
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ژورنال
عنوان ژورنال: International Journal of Electrochemistry
سال: 2011
ISSN: 2090-3537
DOI: 10.4061/2011/941583