Highly sensitive simultaneous electrochemical determination of hydroquinone, catechol and resorcinol based on carbon dot/reduced graphene oxide composite modified electrodes

Zhang, Wuxiang; Zheng, Jianzhong; Lin, Zhongqiu; Zhong, Ling; Shi, Jiangu; Wei, Chan; Zhang, Hanqiang; Hao, Aiyou; Hu, Shirong

doi:10.1039/c5ay00848d

Cited by 59 publications

(24 citation statements)

References 42 publications

(40 reference statements)

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“…As the electron collectors and transporters, some unoxidized aromatic rings of GN would provide an electrostatic interaction could accumulate AP around the GN-CD layers. At the GN-CD/GCE, the proton-donating groups of AP molecules facilitated the charge transport rate, which significantly enhanced the corresponding peak current [51]. The better electrical conductivity can be anticipated at a given sensing level [52].…”

Section: Electrochemical Studies Of the Modified Electrodesmentioning

confidence: 96%

Highly-sensitive electrocatalytic determination for toxic phenols based on coupled cMWCNT/cyclodextrin edge-functionalized graphene composite

Gao

Liu

Song

et al. 2016

Journal of Hazardous Materials

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Section: Electrochemical Studies Of the Modified Electrodesmentioning

confidence: 96%

Highly-sensitive electrocatalytic determination for toxic phenols based on coupled cMWCNT/cyclodextrin edge-functionalized graphene composite

Gao

Liu

Song

et al. 2016

Journal of Hazardous Materials

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“…The detection limit of the determinations, evaluated on the basis of S/N=3 was found to be 0.2 μmol L −1 for HQ and 0.5 μmol L −1 for CC. It is acceptable, compared with data reported in the literature, which show that the detection limits reached by applying DPV and modified electrodes vary in the range from 0.007 μmol L −1 to 50 μmol L −1 for HQ and from 0.009 μmol L −1 to 50 μmol L −1 for CC . Costly materials and complicated techniques for electrode modification were required to achieve lower limits of detection by DPV.…”

Section: Resultsmentioning

confidence: 99%

Simultaneous Determination of Hydroquinone and Catechol by Differential Alternative Pulses Voltammetry

et al. 2018

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The second order voltammetric technique of high resolution, Differential Alternative Pulses Voltammetry (DAPV), was applied for the simultaneous determination of hydroquinone (HQ) and catechol (CC) on bare spectroscopic graphite electrode. Well resolved anodic and cathodic peaks situated on both sides of the zero line were obtained, while the differential pulse voltammograms were overlapped. The linear concentration range for HQ and CC quantification by DAPV was extended up to 20 μmol L−1 for both the isomers. The sensitivity of the determination was found to be 6.00 μA L μmol−1 and 3.61 μA L μmol−1, while the limit of detection reached was 0.2 μmol L−1 and 0.5 μmol L−1 for HQ and CC, respectively. No interference was observed from the commonly coexisting organic species such as resorcinol, phenol and p‐benzoquinone. The great resolution power of DAPV permitted obtaining excellent results without any electrode modification and any mathematical data processing.

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“…This superior feature has been returned to the redox activity of the compiled Pd-polymer matrix that mediates the charge transfer and boosts both selectivity and sensitivity to a much lower detection limits other than the DAN/GCE itself. 28 , 29 …”

Section: Resultsmentioning

confidence: 99%

Individual and Simultaneous Voltammetric Determination of Ultra-Trace Environmental Contaminant Dihydroxybenzene Isomers Based on a Composite Electrode Sandwich-like Structure

et al. 2020

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An advanced electroanalytical technique for the simultaneous assessment of environmental contaminant dihydroxybenzene isomers, catechol (CC), hydroquinone (HQ), and resorcinol (RC), has been investigated using palladium nanoparticles (PdNPs) incorporated onto a poly(1,5-diaminonaphthalene) (DAN) matrix over a glassy carbon electrode (GCE). Concurrently, these types of phenols can be assessed by the PdDAN/GCE modified electrode employing square wave voltammetry and cyclic voltammetry (CV) techniques under optimal conditions. This modified electrode has demonstrated linear responses for CC, HQ, and RC from 50.0 to 1000.0 mM; concomitantly, low detection limits of 0.22, 0.22, and 0.47 nM and low quantification limits of 0.740, 0.758, and 1.590 nM, have been, respectively, shown. Successfully, the simultaneous assessment of the three isomers in river stream water, tap water, and underground water has been implemented via the modified electrode under investigation. In comparison to reported studies, the PdDAN catalytic electrode has shown an effective sensitivity, leverage reproducibility, long-term stability, and excellent anti-interference capability for the determination of dihydroxybenzene isomers.

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Highly sensitive simultaneous electrochemical determination of hydroquinone, catechol and resorcinol based on carbon dot/reduced graphene oxide composite modified electrodes

Abstract: A schematic diagram of the preparation processes of CD/r-GO and the CD/r-GO electrode used for the detection of dihydroxybenzene isomers.

Cited by 59 publications

References 42 publications

Highly-sensitive electrocatalytic determination for toxic phenols based on coupled cMWCNT/cyclodextrin edge-functionalized graphene composite

Highly-sensitive electrocatalytic determination for toxic phenols based on coupled cMWCNT/cyclodextrin edge-functionalized graphene composite

Simultaneous Determination of Hydroquinone and Catechol by Differential Alternative Pulses Voltammetry

Individual and Simultaneous Voltammetric Determination of Ultra-Trace Environmental Contaminant Dihydroxybenzene Isomers Based on a Composite Electrode Sandwich-like Structure

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