A novel voltammetric sensor employing zinc oxide nanoparticles and a new ferrocene-derivative modified carbon paste electrode for determination of captopril in drug samples

Karimi-Maleh, Hassan; Ahanjan, Kimia; Taghavi, Mehdi; Ghaemy, Mousa

doi:10.1039/c5ay03284a

Cited by 88 publications

(22 citation statements)

References 48 publications

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“…In comparison to other analytical methods, electrochemical methods have attracted more attention in the recent years for electroactive and even nonelectroactive compounds analysis due to their good linear dynamic range and limit of detection, accuracy and lower cost . Therefore, electrochemical methods were used as performance techniques for determination of some biological, environmental and pharmaceutical compounds in recent years . To the best of our knowledge, a few numbers of studies has been reported on the voltammetric determination of curcumin using modified electrodes , which is the focus of the present study.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Fast and Sensitive Nanostructure Voltammetric Sensor for Determination of Curcumin in the Presence of Vitamin B₉ in Food Samples

Taher

Karimi-Maleh

2016

Electroanalysis

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Section: Introductionmentioning

confidence: 99%

Fabrication of Fast and Sensitive Nanostructure Voltammetric Sensor for Determination of Curcumin in the Presence of Vitamin B₉ in Food Samples

Taher

Karimi-Maleh

2016

Electroanalysis

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“…[20][21][22][23][24] The fabrication of the working electrode with nanoparticles enhances peak current, sensitivity, reproducibility. 25,26 In current science and technology, one of the crucial uniqueness is to survey and to discover the new efficient materials as electrode surface modifiers.…”

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confidence: 99%

Electrochemical Sensor Based upon Ruthenium Doped TiO₂Nanoparticles for the Determination of Flufenamic Acid

Shetti

Nayak

Malode

et al. 2016

J. Electrochem. Soc.

104

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In the current research, ruthenium stood a conspicuous dopant for TiO 2 nanoparticles, to enhance its catalytic activity. The characterization of synthesized nanoparticles was accomplished by utilizing XRD, SEM, EDX and TEM analysis. The sensing surface morphology was studied by AFM analysis. Further, we established the electrochemical behavior and detection of flufenamic acid (FFA) by utilizing ruthenium doped TiO 2 nanoparticles modified carbon paste electrode (Ru-TiO 2 /CPE) at pH 6.0 by employing different voltammetric techniques. Modification enhances the electro-oxidation of flufenamic acid with increased current intensity. The influence of parameters like scan rate, pH, accumulation time, amount of the modifier and concentration on the peak current of the drug were studied. The effect of FFA concentration variation was studied using square wave voltammetric (SWV) technique and got lowest detection limit compared to reported techniques. The fabricated sensor was employed for the determination of flufenamic acid in biological samples. Flufenamic acid (FFA), N-(α,α,α-trifluoro-m-tolyl) an anthranilic acid derivative (Scheme 1), is an effective analgesic, an antiinflammatory and antipyretic agent used for the relief of pain and inflammation associated with musculoskeletal and joint disorders, peri-articular and soft tissue disorders, antirheumatic therapy.1,2 Monitoring of therapeutic drug habitually necessitates its detection in biological fluids.Many analytical methods based on different principles, such as spectrophotometry, 3-6 spectrofluorimetry, 5,11 fluorescence spectrometry, 7-10 flow injection analysis, 11,12 chromatography [13][14][15] have been developed for the analysis of flufenamic acid along with its derivatives. Capillary electrophoresis [16][17][18] is an alternative methodology for the separation and detection of FFA. However, these methods are well-demonstrated and broadly accepted, but they require moderately costly equipment, laborious sample pretreatment, specialized expertise, high cost and are time-consuming which make them unsuitable for routine analysis. Few voltammetric studies 5,19 were also carried out by utilizing cyclic voltammetry and adsorptive voltammetry. Though, these sensors suffer from the less sensitive, poor long-term stability, lack of surface renewability, etc.As of late, research developed, aiming at the construction and the characterization of the electrodes composed of carbonaceous materials because of their rich surface chemistry, lower background current, wider potential window, uncomplicated surface renewal and low detection limit properties. [20][21][22][23][24] The fabrication of the working electrode with nanoparticles enhances peak current, sensitivity, reproducibility. 25,26 In current science and technology, one of the crucial uniqueness is to survey and to discover the new efficient materials as electrode surface modifiers.In general, new types of sensor devices are the outcome of the synthesis and preparation of innovative modifiers. In this regard, as e...

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“…As depict in Figure S1, the oxidation peak current of SOT is linearly correlated with scan rates; I p (μA)=−20 μA+10.241 μA/(Vs −1 ) 1/2 ; R 2 =0.9990. This behaviour indicates that, the electrochemical oxidation of SOT is controlled by diffusion processes .…”

Section: Resultsmentioning

confidence: 99%

Incorporation of Tetrazolium Blue (TB)/Gold Nanoparticles (GNPs) into Carbon Paste Electrode: Application as an Electrochemical Sensor for the Sensitive and Selective Determination of Sotalol in Micellar Medium

et al. 2017

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The electrochemical oxidation of Sotalol (SOT) based on Tetrazolium Blue (TB)/gold nanoparticles (GNPs)‐modified carbon paste electrodes (CPE) have been studied in the presence of sodium lauryl sulphate (SLS). Cyclic voltammetry (CV), differential pulse voltammetry (DPV), chronoamperometry and electrochemical impedance spectroscopy (EIS) techniques have all been utilized within this study. GNPs and TB have a synergetic effect‐giving rise to highly improved electrochemical responses and provide an advantageous platform for the basis of an electrochemical sensor with excellent performance. The experimental parameters, electrodeposition time, pH and scan rate have all been examined and optimized. The sensing of SOT via DPV is found to exhibit a wide linear dynamic range of 1.0×10−7–7.5×10−4 M in pH 2. LOD and LOQ were calculated and found to correspond to 2.5×10−8 M and 8.3×10−8 M, respectively. The suggested sensor has been used successfully for SOT determination in pharmaceutical samples and human urine as real samples. Satisfactory recoveries of analyte from these samples are demonstrated indicating that the suggested sensor is highly suitable for clinical analysis, quality control and a routine determination of SOT in pharmaceutical formulations.

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A novel voltammetric sensor employing zinc oxide nanoparticles and a new ferrocene-derivative modified carbon paste electrode for determination of captopril in drug samples

Abstract: A novel ferrocene-derivative (1,l′-bis(2-phenylethan-1-ol)ferrocene) as a catalyst for the voltammetric determination of captopril in pharmaceutical and biological compound analysis.

Cited by 88 publications

References 48 publications

Fabrication of Fast and Sensitive Nanostructure Voltammetric Sensor for Determination of Curcumin in the Presence of Vitamin B₉ in Food Samples

Fabrication of Fast and Sensitive Nanostructure Voltammetric Sensor for Determination of Curcumin in the Presence of Vitamin B₉ in Food Samples

Electrochemical Sensor Based upon Ruthenium Doped TiO₂Nanoparticles for the Determination of Flufenamic Acid

Incorporation of Tetrazolium Blue (TB)/Gold Nanoparticles (GNPs) into Carbon Paste Electrode: Application as an Electrochemical Sensor for the Sensitive and Selective Determination of Sotalol in Micellar Medium

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A novel voltammetric sensor employing zinc oxide nanoparticles and a new ferrocene-derivative modified carbon paste electrode for determination of captopril in drug samples

Abstract: A novel ferrocene-derivative (1,l′-bis(2-phenylethan-1-ol)ferrocene) as a catalyst for the voltammetric determination of captopril in pharmaceutical and biological compound analysis.

Cited by 88 publications

References 48 publications

Fabrication of Fast and Sensitive Nanostructure Voltammetric Sensor for Determination of Curcumin in the Presence of Vitamin B9 in Food Samples

Fabrication of Fast and Sensitive Nanostructure Voltammetric Sensor for Determination of Curcumin in the Presence of Vitamin B9 in Food Samples

Electrochemical Sensor Based upon Ruthenium Doped TiO2Nanoparticles for the Determination of Flufenamic Acid

Incorporation of Tetrazolium Blue (TB)/Gold Nanoparticles (GNPs) into Carbon Paste Electrode: Application as an Electrochemical Sensor for the Sensitive and Selective Determination of Sotalol in Micellar Medium

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Fabrication of Fast and Sensitive Nanostructure Voltammetric Sensor for Determination of Curcumin in the Presence of Vitamin B₉ in Food Samples

Fabrication of Fast and Sensitive Nanostructure Voltammetric Sensor for Determination of Curcumin in the Presence of Vitamin B₉ in Food Samples

Electrochemical Sensor Based upon Ruthenium Doped TiO₂Nanoparticles for the Determination of Flufenamic Acid