Study on Diffusion Mechanisms and Determination of Dihydroxybenzene Isomers at the Pre‐anodized Inlaying Ultrathin Carbon Paste Electrode

Increased concern over the risk resorcinol (RS) pose to ecology and humans, led to its position in European Union Category 1 list of endocrine disruptors. Legal measures restricted RS utilization and hence crucial to monitor its levels in the environment. Herein we report development of highly efficient and economically viable electrochemical sensor for quantitative determination of RS based on 77Maghemite/MultiWall Carbon Nanotube (M/MWCNT) modified carbon paste electrode. M/MWCNT was synthesized via strategic IR irradiation for the first time, a promising approach to overcome other complicated chemical routes. Powder X‐ray diffraction (PXRD), Transmission electron microscopy (TEM), Field emission scanning electron microscopy (FESEM) and Energy dispersive X‐ray (EDX) were used for characterization. Using Differential Pulse Voltammetry (DPV), we report the lowest detection limit at 0.02 μM. The potential application of the sensor was accomplished as a result of excellent recoveries made from real samples fortified with RS. Results indicated the proficiency of the sensor reliable for rapid, onsite monitoring of RS water contamination and in biological matrices.

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Voltammetric Study and Rapid Quantification of Resorcinol in Hair Dye and Biological Samples Using Ultrasensitive Maghemite/MWCNT Modified Carbon Paste Electrode

Manasa¹,

Bhakta

Mekhalif

et al. 2019

Electroanalysis

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Simultaneous Determination of Dihydroxybenzene Isomers by MWCNTs-NTiO2 Modified Glassy Carbon Electrode

Wei¹

2017

International Journal of Electrochemical Science

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In this paper, multi-wall carbon nanotubes and nano-titanium dioxide (MWCNTs-NTiO 2 ) modified electrode is easily prepared by one-step coating. The nano-TiO 2 collid is prepared by sol-gel method at room temperature to improve the dispersion and electrical conductivity of original MWCNTs on glass carbon electrode (GCE). The electrochemical behaviors of dihydroxybenzene isomers are investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) at MWCNTs-NTiO 2 /GCE. Hydroquinone (HQ), catechol (CC) and resorcinol (RC) all exhibit sensitive responses at original MWCNTs modified electrode. However, the peak currents of HQ, CC and RC present much enhanced signals at MWCNTs-NTiO 2 modified electrode, proving a good synergetic effect of NTiO 2 and MWCNTs. The individual and simultaneous determination of HQ, CC and RC at MWCNTsNTiO 2 /GCE are studied, and obtains good liner relations in a wide range. The limits of detection for HQ, CC and RC are 93 nmol L -1 , 210 nmol L -1 and 32 nmol L -1 (S/N = 3), respectively. This kind of sensor has been applied for simultaneous determination of HQ, CC and RC in artificial wastewater and obtained good results.

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A Disposable Single-Use Electrochemical Sensor for Detection of Resorcinol Based on Electrochemically Activated Screen Printed Carbon Electrode in Hair Dyes

Periyalagan¹

2017

International Journal of Electrochemical Science

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A simple and effective amperometric sensor based on activated screen printed carbon electrode (ASPCE) was successfully fabricated for the electrochemical determination of resorcinol (RC). The ASPCE was fabricated by electrochemical method and it was characterized by using various numerous technique. The electrocatalytic behaviour of the fabricated ASPCE were examined by the cyclic voltammetry (CV) and amperometric method (I-T). Remarkably, ASPCE exhibited an excellent electrocatalytic activity in terms of decrease the potential and increase the anodic peak current for the detection of RC when compared to bare SPCE. The ASPCE was successfully determined the GA and it showed linear response range from 1 to 49.67 µM and the low detection of limit (LOD) of 0.288 µM. Furthermore, the proposed sensor electrode was revealed an excellent selectivity and good stability. To the best of our knowledge, this fabricated electrode is cost effective and good electrochemical performance towards the determination of RC when compared with previously reported other chemically modified electrodes.

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Study on Diffusion Mechanisms and Determination of Dihydroxybenzene Isomers at the Pre‐anodized Inlaying Ultrathin Carbon Paste Electrode

Cited by 3 publications

References 11 publications

Voltammetric Study and Rapid Quantification of Resorcinol in Hair Dye and Biological Samples Using Ultrasensitive Maghemite/MWCNT Modified Carbon Paste Electrode

Voltammetric Study and Rapid Quantification of Resorcinol in Hair Dye and Biological Samples Using Ultrasensitive Maghemite/MWCNT Modified Carbon Paste Electrode

Simultaneous Determination of Dihydroxybenzene Isomers by MWCNTs-NTiO2 Modified Glassy Carbon Electrode

A Disposable Single-Use Electrochemical Sensor for Detection of Resorcinol Based on Electrochemically Activated Screen Printed Carbon Electrode in Hair Dyes

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