Simultaneous electroanalysis of norepinephrine, ascorbic acid and uric acid using poly(glutamic acid) modified carbon paste electrode

Ganesh, Pattan-Siddappa; Swamy, B.E. Kumara

doi:10.1016/j.jelechem.2015.06.002

Cited by 83 publications

(33 citation statements)

References 34 publications

(30 reference statements)

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“…It should be noted that even though glutamate does not spontaneously form polymers, unlike for example dopamine, there are several reports where polyglutamic acid has been electropolymerized on carbon substrates. [41][42][43][44][45][46] In all the these studies electropolymerization is facilitated by potential cycling within a relatively wide potential window (more than 2 V). It could be possible that the increase in current in Fig.…”

Section: Glutamate Detectionmentioning

confidence: 99%

Pt-grown carbon nanofibers for enzymatic glutamate biosensors and assessment of their biocompatibility

et al. 2018

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Section: Glutamate Detectionmentioning

confidence: 99%

Pt-grown carbon nanofibers for enzymatic glutamate biosensors and assessment of their biocompatibility

et al. 2018

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“…In addition, there have been many studies reported on the development of selective and sensitive electrochemical methods for the determination of NE because NE is an electroactive molecule . Electrochemical methods have attracted much attention owing to their fast response, relatively high sensitivity, and ability of miniaturization …”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of NiFe₂O₄ nanoparticles using the hydrothermal method as magnetic catalysts for electrochemical detection of norepinephrine in the presence of folic acid

Safaei

Beitollahi

Shishehbore

2019

J Chinese Chemical Soc

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In this article, we present a simple and efficient method to synthesize a magnetic NiFe2O4 nanocatalyst under hydrothermal conditions. Fourier transform infrared spectroscopy (FT‐IR), X‐ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X‐ray spectroscopy (EDX) analyses confirmed the synthesis of NiFe2O4 nanoparticles. These nanoparticles showed satisfactory catalytic activity for determination of norepinephrine (NE) in the presence of folic acid (FA) using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods. Differential pulse voltammetry peak currents of NE increased linearly with their concentrations in the range of 1.0 × 10−7–5.0 × 10−4 M, and the detection limit for NE was 2.3 × 10−8 M, respectively. The modified electrode displayed strong function for resolving the overlapping voltammetric responses of NE and FA into two well‐defined voltammetric peaks. In the mixture containing NE and FA, the two compounds can well separate from each other with a potential difference of 510 mV between NE and FA, which was large enough to determine NE and FA individually and simultaneously. Additionally, the prepared electrochemical sensor demonstrated a practical feasibility for real sample determination.

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“…Electrochemically controlled formation of thin polymer films at surface of the electrode is one of the sensible techniques to determine new functional active species. Their uses as a monomer or a polymer for modification of several electrodes have been increasingly used in analytical applications [1]. Catechol (CC), that is also known as pyrocatechol or 1,2dihydroxybenzene, is a simple organic compound as shown in Scheme 1.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Investigation of Catechol at Poly(niacinamide) Modified Carbon Paste Electrode: A Voltammetric Study

Teradale

Lamani

Swamy

et al. 2016

Advances in Physical Chemistry

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A polymeric thin film modified electrode, that is, poly(niacinamide) modified carbon paste electrode (MCPE), was developed for the electrochemical determination of catechol (CC) by using cyclic voltammetric technique. Compared to bare carbon paste electrode (BCPE), the poly(niacinamide) MCPE shows good electrocatalytic activity towards the oxidation of catechol in phosphate buffer solution (PBS) of physiological pH 7.4. All experimental parameters were optimized. Poly(niacinamide) modified carbon paste electrode gave a linear response between concentration of CC and its anodic peak current in the range within 20.6–229.0 μM. The limit of detection (3S/M) and limit of quantification (10S/M) were 1.497 μM and 4.99 μM, respectively. From the study of scan rate variation, the electrode process was found to be adsorption-controlled. The involvement of protons and electrons in the oxidation of CC was found to be equal. The probable electropolymerisation mechanism of niacinamide was proposed. Finally, this method can be used in development of a sensor for sensitive determination of CC.

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Simultaneous electroanalysis of norepinephrine, ascorbic acid and uric acid using poly(glutamic acid) modified carbon paste electrode

Cited by 83 publications

References 34 publications

Pt-grown carbon nanofibers for enzymatic glutamate biosensors and assessment of their biocompatibility

Pt-grown carbon nanofibers for enzymatic glutamate biosensors and assessment of their biocompatibility

Synthesis and characterization of NiFe₂O₄ nanoparticles using the hydrothermal method as magnetic catalysts for electrochemical detection of norepinephrine in the presence of folic acid

Electrochemical Investigation of Catechol at Poly(niacinamide) Modified Carbon Paste Electrode: A Voltammetric Study

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Simultaneous electroanalysis of norepinephrine, ascorbic acid and uric acid using poly(glutamic acid) modified carbon paste electrode

Cited by 83 publications

References 34 publications

Pt-grown carbon nanofibers for enzymatic glutamate biosensors and assessment of their biocompatibility

Pt-grown carbon nanofibers for enzymatic glutamate biosensors and assessment of their biocompatibility

Synthesis and characterization of NiFe2O4 nanoparticles using the hydrothermal method as magnetic catalysts for electrochemical detection of norepinephrine in the presence of folic acid

Electrochemical Investigation of Catechol at Poly(niacinamide) Modified Carbon Paste Electrode: A Voltammetric Study

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Synthesis and characterization of NiFe₂O₄ nanoparticles using the hydrothermal method as magnetic catalysts for electrochemical detection of norepinephrine in the presence of folic acid