Simultaneous determination of dopamine and uric acid in biological samples on the pretreated pencil graphite electrode

Alipour, Esmaeel; Majidi, Mir Reza; Saadatirad, Afsaneh; Golabi, S.M.; Alizadeh, Ali Mohammad

doi:10.1016/j.electacta.2012.12.079

Cited by 118 publications

(56 citation statements)

References 36 publications

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“…The enhancement of the electrochemical activity of PGE toward tannic acid can be attributed to the increased formation of oxygen-containing groups, such as carbonyl and carboxyl on the graphite lead surface during the treatment procedure (Alipour et al 2013). Since the response of Pre-PGE toward tannic acid decreased with the increase of pH, we may imply that specific interactions (likely hydrogen bonds) between oxygen-containing groups on the surface of the electrode and hydroxyl groups of tannic acid arise under acidic conditions.…”

Section: Resultsmentioning

confidence: 99%

Voltammetric determination of tannic acid in beverages using pencil graphite electrode

Vu¹,

Ertek²,

Dilgin³

et al. 2015

Czech J. Food Sci.

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Vu D.L., Ertek B., Dilgin Y., Červenka L. (2015): Voltammetric determination of tannic acid in beverages using pencil graphite electrode. Czech J. Food Sci., 33: 72-76.The pretreated pencil graphite electrode (Pre-PGE) prepared by a chronoamperometry technique was applied for the determination of tannic acid using anodic stripping differential pulse voltammetry. The currents obtained from voltammetry measurements at optimum conditions were linearly correlated with the concentration of tannic acid. Calibration curve was obtained for tannic acid in the concentration range of 5.0-500 × 10 -9 mol/l. The limit of detection was found to be 1.5 × 10 -9 mol/l. The content of tannic acid in beverage samples determined with Pre-PGE was in good agreement with that obtained by the standard spectrophotometric method.

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Section: Resultsmentioning

confidence: 99%

Voltammetric determination of tannic acid in beverages using pencil graphite electrode

Vu¹,

Ertek²,

Dilgin³

et al. 2015

Czech J. Food Sci.

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“…Abnormal levels of uric acid are symptoms of several diseases such as gout, hyperpiesia, and LescÀNyhan syndrome [18]. Electrochemical methods for the determination of uric acid are more selective, less expensive, and less time-consuming than other methods [20,21]. Colorimetric, enzymatic, and electrochemical methods are used to determine the concentration of uric acid [19].…”

Section: Introductionmentioning

confidence: 99%

A Novel Strategy for Simultaneous Determination of Dopamine and Uric Acid Using a Carbon Paste Electrode Modified with CdTe Quantum Dots

et al. 2014

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A novel CdTe quantum dots‐modified carbon paste electrode (QDMCPE) was fabricated and used to study the electrooxidation of dopamine and uric acid and their mixtures by electrochemical methods. Using square wave voltammetry (SWV), a highly sensitive and simultaneous determination of dopamine and uric acid was explored at the modified electrode. SWV peak currents of dopamine and uric acid increased linearly with their concentrations in the ranges of 7.5×10−8–6.0×10−4 M, and 7.5×10−6–1.4×10−3 M, respectively. Finally this new sensor was used for determination of dopamine and uric acid in some real samples.

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“…Low uric acid levels can indicate kidney disease, chronic alcohol use, and lead poisoning . Therefore, the determination of the amount of uric acid in the blood is important and can be done using many methods such as HPLC , capillary electrophoresis , , ion chromatography , spectrophotometry , liquid chromatography‐tandem mass spectrometry , chemiluminescence [20], and electrochemistry .…”

Section: Introductionmentioning

confidence: 99%

Poly(Methyl Red) Modified Glassy Carbon Electrodes: Electrosynthesis, Characterization, and Sensor Behavior

Kul

Öztürk

2017

Electroanalysis

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Poly(methyl red), PMR, was electropolymerized on glassy carbon electrodes by potential cycling in 50 mM phosphate buffer solution at pH 7.0 and 8.0 and Britton Robinson buffer solution in the pH range 7.0‐11.0. The electrochemical behavior of PMR modified electrodes was investigated by cyclic voltammetry in Britton Robinson buffer solution at different pHs from 5.0 to 10.0 and found that the best PMR film formation was obtained at pH 9.0. Uric acid was quantitatively determined at PMR modified electrodes by cyclic voltammetry and differential pulse voltammetry in Britton Robinson buffer at pH 5.0. Both methods presented a linear dependence between the anodic peak current and the concentration of uric acid in the range of 0.4 to 60 μM and 0.08 to 100 μM with the limits of detection of 0.038 and 0.009 μM for cyclic voltammetry and differential pulse voltammetry, respectively. Poly(methyl red) as redox mediator allowed the determination of uric acid without any interferences from the substances in serum samples.

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Simultaneous determination of dopamine and uric acid in biological samples on the pretreated pencil graphite electrode

Cited by 118 publications

References 36 publications

Voltammetric determination of tannic acid in beverages using pencil graphite electrode

Voltammetric determination of tannic acid in beverages using pencil graphite electrode

A Novel Strategy for Simultaneous Determination of Dopamine and Uric Acid Using a Carbon Paste Electrode Modified with CdTe Quantum Dots

Poly(Methyl Red) Modified Glassy Carbon Electrodes: Electrosynthesis, Characterization, and Sensor Behavior

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