Electrochemical modification of glassy carbon electrode by poly-4-nitroaniline and its application for determination of copper(II)

Öztekin, Yasemin; Tok, Mutahire; Nalvuran, Hande; Kiyak, Saliha; Yazicigil, Zafer; Ramanavičienė, Almira

doi:10.1016/j.electacta.2010.08.064

Cited by 51 publications

(25 citation statements)

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“…The GC electrode was prepared as described previously [13,38]. All steps were performed before usage of electrodes in electrochemical experiments in order to prevent the contamination of oxidation products and to obtain a clean-regenerated electrode surface.…”

Section: Procedures Used For Preparation and Modification Of Gc Electmentioning

confidence: 99%

“…: by electrochemical oxidation of aminecontaining compounds, arylacetates or aliphatic alcohols [9,10], by electrochemical reduction of diazonium salts in non-aqueous media or aqueous media [11] and by electrochemical formation of conducting polymers [1]. Potential pulsing [12], potential cycling [13] and even enzymeinduced polymerization [14,15] can also be used for the modification of electrodes by electrochemically deposited polymers. Electrochemical polymerization has several advantages like simplicity of the experimental setup, ease control and capability to address the modification solely to the selected electrode.…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical Glutathione Sensor Based on Electrochemically Deposited Poly‐m‐aminophenol

Öztekin

Ramanavičienė

2011

Electroanalysis

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Preparation and characterization of electrodes suitable for determination of glutathione is reported in this study. For this poly-m-aminophenol (PmAP), poly-o-aminophenol, and poly-p-aminophenol were electrochemically deposited from aqueous solution on the surface of glassy carbon (GC) electrode by potential cycling in the range of + 0.2-+ 1.0 V. The modified GC electrodes were characterized by cyclic voltammetry, electrochemical impedance spectroscopy, contact angle measurement and ellipsometry. It was found that poly-m-aminophenol modified GC electrode (PmAP/GC-electrode) is most suitable for electroanalytical determination of glutathione. An electroanalytical system for the determination of glutathione based on the PmAP/GC-electrode was developed. The analytical system was characterized by low limit of detection, good stability, high sensitivity and wide linear detection range.

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Section: Procedures Used For Preparation and Modification Of Gc Electmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrochemical Glutathione Sensor Based on Electrochemically Deposited Poly‐m‐aminophenol

Öztekin

Ramanavičienė

2011

Electroanalysis

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“…Its unique chemical structure containing an electron withdrawing nitro group and an electron donating amino group in para position in the aromatic ring has attracted attention due to its non-linear optical properties, such as non-linear susceptibility [5]. Modified electrode based on the oxidation of 4-NA and its polymerization at the surface of the traditional electrode were used to quantify copper (II) ions in tap water [6,7]. Recent reports pointed out the possibility of detection of cell apoptosis based on the 3-caspase activity to cleave C-terminus of Asp-Glu-Val-Asp-pNA (DEVD p-nitroaniline), releasing in situ 4-NA that can be easily detected and quantified using differential pulse voltammetry (DPV) at a glassy carbon working electrode (GCE).…”

Section: Introductionmentioning

confidence: 99%

Differential pulse voltammetric determination of 4-nitroaniline using a glassy carbon electrode: comparative study between cathodic and anodic quantification

et al. 2015

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Differential pulse voltammetry with a glassy carbon electrode was used for the determination of trace amounts of 4-nitroaniline in Britton-Robinson buffer at pH 2.0 as an optimal base electrolyte. 4-Nitroaniline can be determined by differential pulse voltammetry directly using either its electrochemical oxidation or reduction. The calibration curve was measured for both reactions in the same concentration range from 2 to 100 lmol dm -3 . The calculated limits of detection and quantification are 0.2 and 0.7 lmol dm -3 (RSD 6.62 % and R 2 = 0.9906 for n = 5) for cathodic reduction and 0.3 and 1.0 lmol dm -3 (RSD 7.62 % and R 2 = 0.9995 for n = 5) for anodic oxidation. Graphical abstract

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“…Electrochemical determination of copper has been performed with mercury-coated platinum microelectrodes [12], glassy carbon electrode modified with glyoxime [13], polyphenols [14], phenanthroline [15,16] derivatives and poly-4-nitroaniline [17]. In addition to this, the design of electrodes with controllable surface properties can be achieved using self-assembled monolayers (SAMs), which become popular in the formation of welldefined functional surfaces [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Determination of Cu(II) Ions by 4‐Formylphenylboronic Acid Modified Gold Electrode

2011

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A self-assembled monolayer (SAM) modified by 4-formylphenylboronic acid was formed on the gold electrode, which was applied for the determination of trace concentrations of Cu(II). The formation of advanced SAM on the gold electrode was evidenced by electrochemical impedance spectroscopy, atomic force microscopy and contact angle measurements. Electrochemical determination of Cu(II) ions was performed by square wave voltammetry. Some mutual interferences caused by Cd(II), Co(II), Fe(II), Ni(II) and Pb(II) ions were investigated and it was demonstrated how the negative effects of these interfering ions could be eliminated by adjustment of proper parameters of square wave voltammetry.

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Electrochemical modification of glassy carbon electrode by poly-4-nitroaniline and its application for determination of copper(II)

Cited by 51 publications

References 50 publications

Electrochemical Glutathione Sensor Based on Electrochemically Deposited Poly‐m‐aminophenol

Electrochemical Glutathione Sensor Based on Electrochemically Deposited Poly‐m‐aminophenol

Differential pulse voltammetric determination of 4-nitroaniline using a glassy carbon electrode: comparative study between cathodic and anodic quantification

Electrochemical Determination of Cu(II) Ions by 4‐Formylphenylboronic Acid Modified Gold Electrode

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