Glassy Carbon Electrodes Film‐Modified with Acidic Functionalities. A Review

Desimoni, E.; Brunetti, Barbara

doi:10.1002/elan.201200125

Cited by 44 publications

(22 citation statements)

References 150 publications

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“…As it can be observed, the results are randomly distributed around the zero, allowing a visual verification of the absence of a significant non linearity, in agreement with the statistical analysis approved (allowing a control of false positive and false negative errors (a = b = 0.05)) by experts in the field. [25,[41][42][43][44][45] Additionally, the residuals of the regression by HPLC were plotted (Figure 3), being very similar to the ones achieved by the electroanalytical analysis. This result clearly shows that, both approaches are comparable, robust and statistically reliable as well as this behavior clearly highlights the satisfactory ability of DPV to detect and quantify BQ with acceptable confidence, quantification precision and good sensitivity.…”

Section: Differential Pulse Voltammetrymentioning

confidence: 64%

Electrochemical Technologies for Detecting and Degrading Benzoquinone Using Diamond Films

et al. 2019

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In this work, the detection and quantification of p‐benzoquinone (BQ) was performed by differential pulse voltammetry (DPV) with a diamond film sensor. The calibration curve and the limits of detection and quantification for BQ were estimated. DPV was compared to high‐performance liquid chromatography (HPLC) analysis, leading to a satisfactory result in terms of stability and sensitive response. As a novel aim, a combined electrochemical method for environmental application has been developed to oxidize and detect BQ using diamond films. A set of galvanostatic electrochemical oxidation experiments with 130 mL of BQ solution were accomplished in order to understand the effect of current density, the concentration of the pollutant and the initial pH using different electrolytes with similar conductivity. The optimal operating conditions were achieved at 33.3 mA cm−2, 100 mg L−1 of BQ at pH 5.0 with 50 mM Na2SO4. Additionally, the evolution of short‐chain carboxylic acids of that test was followed over time in order to suggest a possible degradation route. The results were described and discussed in the light of the existing literature.

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Section: Differential Pulse Voltammetrymentioning

confidence: 64%

Electrochemical Technologies for Detecting and Degrading Benzoquinone Using Diamond Films

et al. 2019

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“…In this context, this kind of polymeric film can be considered a promising, low-cost, steady and biocompatible material for the modification of electrodes [7].…”

Section: Introductionmentioning

confidence: 99%

Cysteic Acid‐Modified Glassy Carbon Electrode for Monitoring Oxalic Acid (OA) Concentration During Its Electrochemical Oxidation at Ti/Pt Anode

et al. 2014

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The aim of this manuscript is to develop a combined method for the detection and elimination of oxalic acid (OA) in aqueous environment. For that, the surface of glassy carbon (GC) electrode has been modified by oxidation of L‐cysteine using cyclic voltammetric (CV) technique. After modification, the formation of a compact and uniform cysteic acid layer film was achieved and it was confirmed by surface analysis (scanning electron microscopy (SEM) and atomic force microscopy (AFM)). Estimation of the linear range, calibration function and limit of detection for OA were performed by differential pulse voltammetry using Cysteine‐modified electrode (Cysteine‐MGC). Due to its stability and sensitive response to OA, it was used for monitoring OA during its electrochemical oxidation at Ti/Pt anode. DPV analyses have been compared with classic titration method and HPLC achieving a good fit, confidence intervals and limits. The results are described and discussed in the light of the existing literature.

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“…Because UA and ascorbic acid (AA) are oxidized at nearly the same potential standard on the bare electrodes, voltammetric responses are overlapped and create a real interference problem in simultaneous determination of each species . Because UA and AA are present in biological materials, it is significant to improve a selective method for the determination of UA in the presence of AA …”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and application of silver nanoparticle‐thiophenol nanocomposite film on the glassy carbon surface

Güzel

Ekşi

Üstündağ

et al. 2013

Surface & Interface Analysis

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In this study, 4‐thiophenol modified glassy carbon electrode was prepared by the reduction of 4‐diazothiophenol tetrafluoroborate salt. Silver nanoparticles were attached to the thiophenol modified surface to prepare a thiophenol‐silver nanoparticle composite film. 4‐Aminothiopenol molecules were deposited by self‐assembling technique to form multi‐layered nanofilms of TP/SNP/PhNH2 on glassy carbon substrate. These surfaces were characterized by cyclic voltammetry, electrochemical impedance spectroscopy, X‐ray photoelectron spectroscopy, reflectance‐absorption infrared spectroscopy, and ellipsometry at each multilayer film growth process. Atomic force microscopic images of GC/TP/SNP/PhNH2 surfaces were also acquired. The characterization methods show that the amine group containing surface permits the subsequent modification by a variety of coupling reactions for the immobilization of more complex systems. An application of the electrode modification for the determination of uric acid with a significantly lower detection limit is described. Copyright © 2013 John Wiley & Sons, Ltd.

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Glassy Carbon Electrodes Film‐Modified with Acidic Functionalities. A Review

Cited by 44 publications

References 150 publications

Electrochemical Technologies for Detecting and Degrading Benzoquinone Using Diamond Films

Electrochemical Technologies for Detecting and Degrading Benzoquinone Using Diamond Films

Cysteic Acid‐Modified Glassy Carbon Electrode for Monitoring Oxalic Acid (OA) Concentration During Its Electrochemical Oxidation at Ti/Pt Anode

Synthesis, characterization, and application of silver nanoparticle‐thiophenol nanocomposite film on the glassy carbon surface

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