Simultaneous electrochemical detection of hydroquinone and catechol using poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide

Mohanadas, Dharshini; Tukimin, Nurulkhalilah; Sulaiman, Yusran

doi:10.1016/j.synthmet.2019.04.014

Cited by 24 publications

(8 citation statements)

References 28 publications

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“…Previous works have reported utilizing a very high concentration of the analytes (0.5 mM HQ and CT at 0.1 M PBS pH 7.0) to better understand the selectivity of the proposed sensor towards HQ and CT in the presence of interfering species. [ 63–65 ] Some possible common interferent [ 49,66 ] such as K + , Na + , Zn 2+ , Mg 2+ , NH 4 + , SO 4 2– , Cl – , NO 3 – , and CO 3 2– with 10‐fold higher concentration compared to HQ and CT were added to the mixture. The current responses of HQ and CT were found nearly constant in the presence of each interfering ion.…”

Section: Resultsmentioning

confidence: 99%

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Porous tal palm carbon nanosheets as a sensing material for simultaneous detection of hydroquinone and catechol

Nayem

Sultana

Islam

et al. 2021

Electrochemical Science Adv

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In this article, an electrochemical sensor was prepared for the simultaneous detection of hydroquinone (HQ) and catechol (CT) by incorporating porous tal palm carbon nanosheets (PTPCNS) as the modifier substance on the surface of glassy carbon electrode (GCE). Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were utilized to characterize the electrochemical properties of the designed (PTCNS/GCE) sensor. PTPCNS/GCE demonstrated excellent electro‐catalytic property toward resolving the individual voltametric signal of HQ and CT from their mixture. Differential pulse voltammetry (DPV) was applied to quantify the lower limit of HQ and CT. The calculated limit of detection (LOD) was 0.15 µM for HQ with the linear range of 1–300 µM and 0.49 µM for CT with the corresponding linear range 5–225 µM obtained for the proposed sensor. The limit of quantification (LOQ) was found 0.51 µM and 1.63 µM for HQ and CT, respectively. Modified PTPCNS/GCE exhibited excellent selectivity towards HQ and CT even in presence of 10 folds potential interference. The practical applicability of the proposed sensor was analyzed in tap water sample with an excellent recovery of 98–104% for HQ and 99–102% for CT.

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Section: Resultsmentioning

confidence: 99%

“…The stability studies were carried out with high concentrations of HQ and CT based on previous reports. [ 63 ] The high concentration was utilized to determine the stability of the prepared electrodes towards HQ and CT. The RSD was obtained to be 2.12% for HQ and 1.94% for CT, respectively.…”

Section: Resultsmentioning

confidence: 99%

Porous tal palm carbon nanosheets as a sensing material for simultaneous detection of hydroquinone and catechol

Nayem

Sultana

Islam

et al. 2021

Electrochemical Science Adv

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“…Due to irreversible agglomeration through π–π stacking and Van der Waals forces in the absence of polymer dispersant or surfactant, the stability of rGO is limited. Therefore, functionalization of rGO is needed to prevent the aggregation of π–π stacking of two sheets [4,53,159,160] . To prevent aggregation, Zheng et al [161] .…”

Section: Simultaneous Detection Of Hq and Ctmentioning

confidence: 99%

“…Polymer incorporation is a commonly used strategy to prevent the aggregation of rGO. Mohanadas and coworkers [53] electrochemically incorporated poly(3,4‐ethylenedioxythiophene) (PEDOT) into rGO sheets and subsequently manganese dioxide (MnO 2 ) on PEDOT/rGO. MnO 2 boosted the electrocatalytic activity of PEDOT/rGO toward HQ and CT.…”

Section: Simultaneous Detection Of Hq and Ctmentioning

confidence: 99%

“…Therefore, highly susceptible analytical methods for the simultaneous and selective detection of these three isomers are necessary. Different analytical techniques are applied for the selective, simultaneous detection of HQ, CT, and RS, such as high‐performance liquid chromatography (HPLC), [3,42,45,50,64] chemiluminescence, [37,43,47,52,65] spectrophotometry, [35,38,44,47,53] fluorescence, [17,33,39,51] gas chromatography/mass spectrometry (GC−MS), [15,22,46,51,63] pH‐based flow‐injection analysis, [29,40,57,71] capillary electrophoresis, [5,24,54,62] UV‐Vis spectroscopy, [56] colorimetry, [55,68] and electrochemical techniques [37–47,58–61,65–70] …”

Section: Introductionmentioning

confidence: 99%

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Electrochemical Sensing Platforms of Dihydroxybenzene: Part 1 – Carbon Nanotubes, Graphene, and their Derivatives

Nayem

Shah

Sultana

et al. 2021

The Chemical Record

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Dihydroxybenzene is regarded as a serious environmental pollutant. Its detection through electrochemical methods is still challenging due to having a similar structure and overlapping signals with the conventional bare electrode. Thanks to the unique features and wide applicability of carbon nanotubes, graphene, and their derivatives, they can be used as modifiers to overcome the poor resolution ability of bare electrodes in the detection of dihydroxybenzene. This review focuses on the use of carbon nanotubes, graphene, and their derivatives and nanocomposites to enhance the electrocatalytic activity of conventional bare electrodes for dihydroxybenzene sensing. The reports from 2011–2020 on the simultaneous and/or individual detection of three different dihydroxybenzenes – hydroquinone, catechol, and resorcinol – are summarized. This review also highlights the challenges and prospects surrounding the sensitive and selective detection of dihydroxybenzene.

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Novel electrochemical ZnO/MnO2/rGO nanocomposite-based catalyst for simultaneous determination of hydroquinone and pyrocatechol

Khand,

Solangi,

Shaikh

et al. 2024

Microchim Acta

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Simultaneous electrochemical detection of hydroquinone and catechol using poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide

Cited by 24 publications

References 28 publications

Porous tal palm carbon nanosheets as a sensing material for simultaneous detection of hydroquinone and catechol

Porous tal palm carbon nanosheets as a sensing material for simultaneous detection of hydroquinone and catechol

Electrochemical Sensing Platforms of Dihydroxybenzene: Part 1 – Carbon Nanotubes, Graphene, and their Derivatives

Novel electrochemical ZnO/MnO2/rGO nanocomposite-based catalyst for simultaneous determination of hydroquinone and pyrocatechol

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