Electrochemical behavior of poly (naphthol green B)-film modified carbon paste electrode and its application for the determination of dopamine and uric acid

Chitravathi, S.; Swamy, B.E. Kumara; Mamatha, G.; Sherigara, B. S.

doi:10.1016/j.jelechem.2011.11.017

Cited by 58 publications

(27 citation statements)

References 41 publications

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“…Naphthol Green B (NGB), with molecular formula C30H15FeN3Na3O15S3, is an important commercial green nitroso dye, a complexometric indicator with three SO3 -groups and a naphthalene structure leading to excellent water solubility and good stability (16,17,18). This dye is not bio-degradable and its presence in water is highly undesirable (19).…”

Section: Nitroso Dyesmentioning

confidence: 99%

“…As an anion, it acts as acid dye and possesses excellent redox characteristics. Such dye is able to undergo electropolymerization from aqueous solution, producing stable redox active layer (18). NGB causes skin irritation and serious eye irritation, can cause respiratory irritation and is harmful to aquatic life with long lasting effects (22).…”

Section: Nitroso Dyesmentioning

confidence: 99%

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Usage of FTIR-ATR as Non-Destructive Analysis of Selected Toxic Dyes

Bartošová

Blinová

Sirotiak

et al. 2017

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

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Section: Nitroso Dyesmentioning

confidence: 99%

Section: Nitroso Dyesmentioning

confidence: 99%

Usage of FTIR-ATR as Non-Destructive Analysis of Selected Toxic Dyes

Bartošová

Blinová

Sirotiak

et al. 2017

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

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“…The conductive polymers synthesised by electropolymerisation of azines and phenazines can serve as redox mediators [3][4][5][6][7][8]. Active sites of these dyes facilitate the electrochemical deposition of electroactive species.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, some functional groups of the polymers such as -NH and -COOH allow selective molecular interactions between the polymer film and the target molecule. The polymer-modified electrodes have been widely used in electrochemical sensors and biosensors for the investigation of the characteristics of some molecules such as Lcysteine and L-tyrosine [3], dopamine [4,5], caffeine [6], nitric oxide [7] and hydrogen peroxide [8].…”

Section: Introductionmentioning

confidence: 99%

Poly(acridine orange)-modified glassy carbon electrodes: electrosynthesis, characterisation and sensor application with uric acid

2014

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Poly(acridine orange) was electropolymerised on glassy carbon electrodes by potential cycling in phosphate buffer solution at pH 5.5, 6.0, 7.0 and 8.0. Electrochemical behaviour of the modified electrodes was studied by cyclic voltammetry in phosphate buffer solution at various pHs and found that the best polymer film formation was obtained at pH 5.5. Quantitative determination of uric acid was achieved by cyclic voltammetry, differential pulse voltammetry (DPV) and fixed-potential amperometry in phosphate buffer solution at pH 5.5. Anodic peak currents were linearly proportional to concentration of uric acid in the range 1-75 lM for cyclic voltammetry, 0.4-75 lM for DPV and 0.04-5.3 lM for amperometry. Detection limits were 3.7 9 10 -1 , 9.7 9 10 -2 and 9.5 9 10 -3 lM for cyclic voltammetry, DPV and amperometry, respectively. The modified electrodes exhibited good sensitivity, wide linear range and good stability. There is no interference from substances commonly present in natural samples.

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“…Polymer films modified electrodes [1][2][3][4][5][6][7][8][9] have been receiving great attention recently due to their wide applications in the * Corresponding author. field of chemical sensors and biosensors.…”

Section: Introductionmentioning

confidence: 99%