Electropolymerization of Acid Chrome Blue K on Glassy Carbon Electrode for the Determination of Curcumin

Peng, Jinyun; Ke-liang, Nong; Cen, Ling-Ping

doi:10.1002/jccs.201200085

Cited by 23 publications

(10 citation statements)

References 27 publications

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“…Limit of detection (LOD) and limit of quantification (LOQ) were found to be 2.2×10 -8 M and 6.7×10 -8 M, respectively. The determination parameters of curcumin for this assay were compared with those of other studies, [38][39][40] and the results were presented in Table 2. As can be seen from Table 2, the novel developed Al 3+ /PdNp/GE can provide an assay with appropriate concentration range and lower LOD.…”

Section: Electrochemical Behavior Ofmentioning

confidence: 99%

A Newly Developed Electrocatalytic Oxidation and Voltammetric Determination of Curcumin at the Surface of PdNp-graphite Electrode by an Aqueous Solution Process with Al3+

Çakır¹,

Bíçer²,

Arslan³

2015

Croat. Chem. Acta

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Abstract. In the first stage, the palladium nanoparticles (PdNps)-coated graphite electrode (PdNp/GE) has been prepared. Scanning electron microscopy (SEM) technique showed that the palladium nanoparticles were uniformly distributed with an average particle diameter of 60-75 nm. And then, a novel-modified electrode has been developed by the physical deposition of Al 3+ ions on palladium nanoparticles (PdNps)-coated graphite electrode (Al 3+ /PdNp/GE). This modified electrode was characterized by square-wave voltammetry (SWV), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The sensitivities of PdNp/GE and Al 3+ /PdNp/GE electrodes were tested with dopamine. Al 3+ /PdNp/GE exhibited a catalytic activity for curcumin oxidation. The square-wave voltammogram of curcumin in phosphate buffer (pH = 2) gave an anodic peak at 0.56 V. The anodic peak current of curcumin was found to be linearly related to its concentration in the range of 3.0 × 10 -8 M to 6.0 × 10 -7 M with a detection limit of 2.2  10 -8 M. It was also found that the novel Al 3+ /PdNp/GE electrode had the best sensitivity when compared to glassy carbon electrode (GCE), hanging mercury drop electrode (HMDE) and glassy carbon electrode electropolymerized with acid chrome blue K (poly-ACBK/GCE), used for the determination of curcumin. The curcumin was detected in marketed spices sample of turmeric powder. Pure turmeric powder had the highest curcumin concentration, averaging 4.317 ± 0.175 % by weight.

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Section: Electrochemical Behavior Ofmentioning

confidence: 99%

A Newly Developed Electrocatalytic Oxidation and Voltammetric Determination of Curcumin at the Surface of PdNp-graphite Electrode by an Aqueous Solution Process with Al3+

Çakır¹,

Bíçer²,

Arslan³

2015

Croat. Chem. Acta

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“…determination of curcumin with an electrochemical method. The carbon screen-printed electrode, 19 electropolymerization of acid chrome blue K modied electrode, 20 hanging mercury drop electrode (HMDE) 21 and bare glassy carbon electrode 22 were employed for the determination of curcumin. In these reports, there was a slight deciency in the methods, such as not enough sensitivity or a relatively narrow detection linear range.…”

Section: Curcuminmentioning

confidence: 99%

The electrochemical characterization of curcumin and its selective detection in Curcuma using a graphene-modified electrode

Yang

et al. 2014

Anal. Methods

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A sensitive voltammetric sensor, a graphene-modified glassy carbon electrode (GR/GCE), for the detection of trace amounts of curcumin is proposed. The GR/GCE was characterized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The electrochemical behavior of curcumin at the GR/GCE was investigated by CV and liner sweep voltammetry (LSV). The reaction mechanisms of curcumin on the GR/GCE were also investigated and discussed systematically. In addition, the currents measured by LSV presented a good linear relationship with curcumin concentrations in the range of 5.0 Â 10 À8 to 3.0 Â 10 À6 mol L À1 , with a low detection limit of 3.0 Â 10 À8 mol L À1 . The method was also applied successfully to detect curcumin in a Curcuma longa L. sample with high selectivity and accuracy, as well as good recovery.

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“…However, there are only a few reports concerning electrochemical analysis of curcumin, and the electrochemistry of curcumin is still unclear. [6][7][8][9][10][11][12] In this study, carbon nanotube (CNT)-based electrodes were chosen for the electrochemical analysis of curcumin because of their excellent electrochemical behavior. There are many reports concerning polyphenol analysis with CNT-base electrodes.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of Curcumin in Food with a Carbon Nanotube- Carboxymethylcellulose Electrode

et al. 2020

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Herein, an electrochemical method is presented for the detection of curcumin in food using a carbon nanotube (CNT)carboxymethylcellulose (CMC) electrode. The CNT-CMC electrode exhibited ideal characteristics for curcumin detection, namely, a high response current and adequate peak separation toward curcumin oxidation. Cyclic voltammetry revealed two oxidation peaks. In the first scan, only the irreversible peak (Peak I) was observed at a higher potential. In the second scan, the reversible redox peak pairs (Peaks II and II′) appeared at lower potentials, and the potential of Peak I was decreased. Peak I corresponded to oxidation of the hydroxyl groups of the benzene ring to the catechol group via a phenoxy radical, while Peaks II and II′ indicated the redox loop system of the generated catechol group. The current at Peak II was used to quantify the concentration of curcumin in the linear range of 1-48 µM and detection limit of 0.084 µM. The concentrations of curcumin determined by the CNT-CMC electrode in real food samples were consistent with those determined by high-performance liquid chromatography.

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Electropolymerization of Acid Chrome Blue K on Glassy Carbon Electrode for the Determination of Curcumin

Cited by 23 publications

References 27 publications

A Newly Developed Electrocatalytic Oxidation and Voltammetric Determination of Curcumin at the Surface of PdNp-graphite Electrode by an Aqueous Solution Process with Al3+

A Newly Developed Electrocatalytic Oxidation and Voltammetric Determination of Curcumin at the Surface of PdNp-graphite Electrode by an Aqueous Solution Process with Al3+

The electrochemical characterization of curcumin and its selective detection in Curcuma using a graphene-modified electrode

Electrochemical Detection of Curcumin in Food with a Carbon Nanotube- Carboxymethylcellulose Electrode

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