Square-wave stripping voltammetric determination of caffeic acid on electrochemically reduced graphene oxide–Nafion composite film

Filik, Hayati; Çetintaş, Gamze; Avan, Asiye Aslıhan; Aydar, Sevda; Koç, Serkan Naci; Boz, İsmail

doi:10.1016/j.talanta.2013.05.031

Cited by 87 publications

(45 citation statements)

References 27 publications

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“…The observed plot indicated that the CA oxidation had a linearity with the linear regression equation of Ipa (μA) = 0.0889 × 10 −6 A/mVs −1 + 4.489 μA (R 2 = 0.9959) and Ipc (μA) = 0.0677 × 10 −6 A/mVs −1 − 3.396 μA (R 2 = 0.9957). This study indicated that the electrocatalytic oxidation of CA at NDC/GCE was controlled by the adsorption controlled process22.…”

Section: Resultsmentioning

confidence: 74%

“…In addition, the lead modified GCE (PbFE-GCE), laccase-MWCNT and gold nanoparticles modified electrodes were reported for the electrochemical determination of CA181920. Recently, the chemically reduced and electrochemically reduced graphene oxide modified electrodes are investigated for the determination of CA which revealed a superior performance2122. Commonly, graphene or derivatives of graphene have been widely used in many different applications due to its remarkable physicochemical properties23.…”

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confidence: 99%

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A voltammetric determination of caffeic acid in red wines based on the nitrogen doped carbon modified glassy carbon electrode

Karikalan

Chen

2017

Sci Rep

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We reported an electrochemical determination of caffeic acid (CA) based on the nitrogen doped carbon (NDC). The described sensor material was prepared by the flame synthesis method, which gave an excellent platform for the synthesis of carbon nanomaterials with the hetero atom dopant. The synthesized material was confirmed by various physical characterizations and it was further characterized by different electrochemical experiments. The NDC modified glassy carbon electrode (NDC/GCE) shows the superior electrocatalytic performance towards the determination of CA with the wide linear concentration range from 0.01 to 350 μM. It achieves the lowest detection limit of 0.0024 μM and the limit of quantification of 0.004 μM. The NDC/GCE-CA sensor reveals the good selectivity, stability, sensitivity and reproducibility which endorsed that the NDC is promising electrode for the determination of CA. In addition, NDC modified electrode is applied to the determination of CA in red wines and acquired good results.

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Section: Resultsmentioning

confidence: 74%

mentioning

confidence: 99%

A voltammetric determination of caffeic acid in red wines based on the nitrogen doped carbon modified glassy carbon electrode

Karikalan

Chen

2017

Sci Rep

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“…Taking the above mentioned lacune and the high electroactivity of PCM into consideration, electrochemical analytical techniques for PCM determination has been 3 widely explored method due to simplicity, high sensitivity, low cost, easy operation and possibility to miniaturization [18][19][20][21]. Hence, considerable efforts have been devoted to modify the electrode for enhancing its voltammetric response and analytical performance [23][24][25][26][27][28][29][30][31][32][33][34][35][36]. Another problem commonly encountered at bare electrode is that they get poisoned by several species and decrease sensitivity and reproducibility.…”

Section: Introductionmentioning

confidence: 99%

MWCNT–CTAB modified glassy carbon electrode as a sensor for the determination of paracetamol

et al. 2015

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An electrochemical sensor for sensitive detection of paracetamol (PCM) was developed by constructing the glassy carbon electrode (GCE) modified with multiwalled carbon nanotubecetyltrimethyl ammonium bromide (MWCNT-CTAB). Modification improves the redox kinetics of PCM with increased current intensity. A similar modification at CTAB modified GCE did not result in an impressive charge transfer. Detection limit of PCM was determined from differential pulse voltammetric (DPV) study and found to be 4.82×10 −9 M with a linear dynamic range of 4.0×10 −7 M to 4.0×10 −6 M. The interference studies showed that the modified electrode exhibits excellent selectivity in the presence of large excess of interferents and response is fast, stable, reliable, resistant to biofouling and can be applied for the real sample analysis in medical, pharmaceutical and biotechnological sectors.Kinetic parameters were determined using electrochemical approaches. The practical analytical application of this electrode was demonstrated by measurement of PCM content in PYREMOL 650 tablet and real sample analysis.

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“…Moghaddam and coauthors [15] indicated that SWCNT with graphite-based electrode offered an improvement in the CA electrochemical behavior and investigated the influence of the scan rate in the CA oxidation by CV measurement. With the presence of CA, the anodic and cathodic peak was 17-fold higher than that of a bare GCE [16].…”

Section: Introductionmentioning

confidence: 86%

Carbon Nanotubes Modified Carbon Cloth Cathode Electrode for Self-Pumping Enzymatic Biofuel Cell

Duong

You

Huang

et al. 2018

Journal of Renewable Energy

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A self-pumping enzymatic biofuel cell (self-pumping EBC) with a new cathodic catalyst which was modified by coating the mixture of carbon nanotubes/caffeic acid (CNTs/CA) on a carbon cloth (CC) to form a CNTs/CA/CC cathode electrode was fabricated. By using UV spectrophotometer, the absorbance of CA, CNTs, and the CNTs/CA composite was observed. To evaluate how the CNTs/CA/CC cathodic electrode improves the electrochemical performance of the self-pumping EBC, the measurement of the redox reaction current peak by cyclic voltammetry (CV) was implemented. In accordance with CV measurement, the utilization of the modified CNTs/CA/CC cathodic electrode exhibited a higher oxygen reduction current peak at 319.1 A under the saturated oxygen. The anode and cathode flow rates were 0.416 ls −1 and 0.844 ls −1 which contribute to obtaining the capillary driven liquid efficiency as 30% for the former and 59% for the latter. Moreover, the self-pumping EBC performance tests showed that the maximum power density (MPD) of the self-pumping EBC with the modified cathodic electrode achieved 0.592 mWcm −2 which improved 10% in the performance compared with the bare CC electrode, 0.534 mWcm −2 .

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Square-wave stripping voltammetric determination of caffeic acid on electrochemically reduced graphene oxide–Nafion composite film

Cited by 87 publications

References 27 publications

A voltammetric determination of caffeic acid in red wines based on the nitrogen doped carbon modified glassy carbon electrode

A voltammetric determination of caffeic acid in red wines based on the nitrogen doped carbon modified glassy carbon electrode

MWCNT–CTAB modified glassy carbon electrode as a sensor for the determination of paracetamol

Carbon Nanotubes Modified Carbon Cloth Cathode Electrode for Self-Pumping Enzymatic Biofuel Cell

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