Electrochemical detection of hydroquinone and catechol with covalent organic framework modified carbon paste electrode

Yu, Xin; Wang, Ning; Wang, Chunli; Gao, Wei; Chen, Mingli; Liu, Nazhen; Duan, Jizhou; Hou, Baorong

doi:10.1016/j.jelechem.2020.114530

Cited by 48 publications

(21 citation statements)

References 44 publications

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“…However, bare working electrodes are associated with unavoidable drawbacks such as a slow electron transport rate, poor resolution in binary/ternary mixture analysis and major fouling of the electrode surface [9,10]. However, electrochemistry scientists have demonstrated many acceptable methodologies to improve the performance of the bare electrode through modification of the working electrode [11][12][13]. There are so many different materials used in the literature to modify the working electrode, such as nanoparticles/composites [14], multiwall carbon nanotubes [15], organic compounds [16], ionic liquids [17] and surfactants [18].…”

Section: Introductionmentioning

confidence: 99%

Quantum Chemical Studies and Electrochemical Investigations of Polymerized Brilliant Blue-Modified Carbon Paste Electrode for In Vitro Sensing of Pharmaceutical Samples

et al. 2021

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To develop an electrochemical sensor for electroactive molecules, the choice and prediction of redox reactive sites of the modifier play a critical role in establishing the sensing mediating mechanism. Therefore, to understand the mediating mechanism of the modifier, we used advanced density functional theory (DFT)-based quantum chemical modeling. A carbon paste electrode (CPE) was modified with electropolymerization of brilliant blue, later employed for the detection of paracetamol (PA) and folic acid (FA). PA is an analgesic, anti-inflammatory and antipyretic prescription commonly used in medical fields, and overdose or prolonged use may harm the liver and kidney. The deficiency of FA associated with neural tube defects (NTDs) and therefore the quantification of FA are very essential to prevent the problems associated with congenital deformities of the spinal column, skull and brain of the fetus in pregnant women. Hence, an electrochemical sensor based on a polymerized brilliant blue-modified carbon paste working electrode (BRB/CPE) was fabricated for the quantification of PA and FA in physiological pH. The real analytical applicability of the proposed sensor was judged by employing it in analysis of a pharmaceutical sample, and good recovery results were obtained. The potential excipients do not have a significant contribution to the electro-oxidation of PA at BRB/CPE, which makes it a promising electrochemical sensing platform. The real analytical applicability of the proposed method is valid for pharmaceutical analysis in the presence of possible excipients. The prediction of redox reactive sites of the modifier by advanced quantum chemical modeling-based DFT may lay a new foundation for researchers to establish the modifier–analyte interaction mechanisms.

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Section: Introductionmentioning

confidence: 99%

Quantum Chemical Studies and Electrochemical Investigations of Polymerized Brilliant Blue-Modified Carbon Paste Electrode for In Vitro Sensing of Pharmaceutical Samples

et al. 2021

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“…Sensor assemblies are usually achieved by different strategies. One of them involves the mixing of the COF with the conductive additives in a hollow glass tube [70,71]. A second strategy involves the electrode modification with Covalent Organic Nanosheets (also known as CONs [72,73]), produced by delamination of COFs usually by liquid phase exfoliation (LPE) and subsequent drop casting of CONs colloids [74][75][76].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical (Bio)Sensors Based on Covalent Organic Frameworks (COFs)

Martínez‐Periñán

Martínez-Fernández

Segura

et al. 2022

Sensors

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Covalent organic frameworks (COFs) are defined as crystalline organic polymers with programmable topological architectures using properly predesigned building blocks precursors. Since the development of the first COF in 2005, many works are emerging using this kind of material for different applications, such as the development of electrochemical sensors and biosensors. COF shows superb characteristics, such as tuneable pore size and structure, permanent porosity, high surface area, thermal stability, and low density. Apart from these special properties, COF’s electrochemical behaviour can be modulated using electroactive building blocks. Furthermore, the great variety of functional groups that can be inserted in their structures makes them interesting materials to be conjugated with biological recognition elements, such as antibodies, enzymes, DNA probe, aptamer, etc. Moreover, the possibility of linking them with other special nanomaterials opens a wide range of possibilities to develop new electrochemical sensors and biosensors.

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“…Hydroquinone (HQ, 1,4-dihydroxybenzene) and catechol (CC, 1,2-dihydroxybenzene) are the toxic phenolic compounds, used as a basic feed stocks in manufacturing industries such as; paint, leather, pharmaceutical, pesticide, cosmetics and plastic industries 13 , 14 . These positional isomers of phenol are toxic to human beings and environment.…”

Section: Introductionmentioning

confidence: 99%

“…Usually, these molecules coexist and it was difficult to detect them simultaneously by developing sensitive and selective methods 15 . So far, the quantitative methods like spectrophotometry 16 , 17 , synchronous fluorescence 18 , high performance liquid chromatography 19 , electrochemiluminescence 20 and electroanalytical 13 – 15 methods were established. Among these methods, electroanalytical methods are most preferable due to high sensitivity, quick response and selectivity 21 , 22 .…”

Section: Introductionmentioning

confidence: 99%

“…Among these methods, electroanalytical methods are most preferable due to high sensitivity, quick response and selectivity 21 , 22 . Since, the redox peaks of these phenolic isomers, HQ and CC are broad and overlapped with each other at bare electrodes 14 , 15 , so many chemically modified electrodes such as poly(rutin) 22 , poly(pyrogallol red) 23 , covalent organic framework 13 , MOF-rGO 14 , gold nanoparticles mesoporous silica 15 , SBA-15 mesoporous silica 24 and electrospun carbon nanofiber 25 have been employed for their simultaneous voltammetric detection.…”

Section: Introductionmentioning

confidence: 99%

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An experimental and theoretical approach to electrochemical sensing of environmentally hazardous dihydroxy benzene isomers at polysorbate modified carbon paste electrode

Ganesh

Kim

Salim

2022

Sci Rep

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It is well known that, surfactants provide a neutral, positive and/or negative charge on the electrode surface by forming a monolayer, which in turn affects the charge transfer and redox potential during the electroanalysis process. However, the molecular level understanding of these surfactant-modified electrodes is worth investigating because the interaction of the analyte with the electrode surface is still unclear. In this report, we used quantum chemical models based on computational density functional theory (DFT) to investigate the polysorbate 80 structure as well as the locations of energy levels and electron transfer sites. Later, the bare carbon paste electrode (bare/CPE) was modified with polysorbate 80 and used to resolve the overlapped oxidation signals of dihydroxy benzene isomers. The m/n values obtained at polysorbate/CPE was approximately equal to 1, signifying the transfer of same number of protons and electrons. Moreover, the analytical applicability of the modified electrode for the determination of catechol (CC) and hydroquinone (HQ) in tap water samples gave an acceptable recovery result. Overall, the application of DFT to understand the molecular level interaction of modifiers for sensing applications laid a new foundation for fabricating electrochemical sensors.

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Electrochemical detection of hydroquinone and catechol with covalent organic framework modified carbon paste electrode

Cited by 48 publications

References 44 publications

Quantum Chemical Studies and Electrochemical Investigations of Polymerized Brilliant Blue-Modified Carbon Paste Electrode for In Vitro Sensing of Pharmaceutical Samples

Quantum Chemical Studies and Electrochemical Investigations of Polymerized Brilliant Blue-Modified Carbon Paste Electrode for In Vitro Sensing of Pharmaceutical Samples

Electrochemical (Bio)Sensors Based on Covalent Organic Frameworks (COFs)

An experimental and theoretical approach to electrochemical sensing of environmentally hazardous dihydroxy benzene isomers at polysorbate modified carbon paste electrode

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