Electrochemical sensor for hydroquinone and catechol based on electrochemically reduced GO–terthiophene–CNT

Han, Hyoung Soon; You, Jung‐Min; Seol, Heejin; Jeong, Haesang; Jeon, Seungwon

doi:10.1016/j.snb.2014.01.006

Cited by 81 publications

(27 citation statements)

References 45 publications

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“…In addition, many pharmaceutical drugs such as doxorubicin, daunorubicin, and mitomycin C that are used in cancer chemotherapy are composed of specifically substituted quinones [7]. Therefore, it seems that syntheses of organic compounds with structure of catechol and hydroquinone are interesting regarding pharmaceutical properties [8][9][10][11][12][13][14]. A vast number of valuable derivatives have been synthesized using electrochemical oxidation of 1 and 2 in the presence of various nucleophiles.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and electrochemical study of some dihydroxybenzenes in the presence of different nucleophiles

Beiginejad

Nematollahi

2015

Monatsh Chem

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In the current study, effects of thermodynamic on the reaction mechanisms of the electrochemical oxidation of hydroquinone and catechol in the presence of various nucleophiles have been investigated both experimentally and theoretically, using cyclic voltammetry, controlled-potential coulometry, and density functional theory. The theoretical results were calculated at DFT (B3LYP) level of theory and 6-311?G(p,d) basis set. Calculated DG tot of the oxidation of the intermediates and products indicated that thermodynamic is one of the important parameters on the reaction mechanisms. The results of this work show that depending on the DG tot of electrochemical oxidation, the intermediates which are produced on the surface of electrode will participate in the electrochemical or chemical following reactions. Graphical abstract

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Section: Introductionmentioning

confidence: 99%

Thermodynamic and electrochemical study of some dihydroxybenzenes in the presence of different nucleophiles

Beiginejad

Nematollahi

2015

Monatsh Chem

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“…The results showed that 20-fold L-tyrosine, glucose, glycine, 100-fold K + , Na + , Ca 2+ , Mg 2+ , Cl − , I − , SO 4 2− , NO 3 − , HCO 3 − have no significant effect on the determination of the target testing reagents, indicating good anti-interference ability of the proposed electrode.…”

Section: Resultsmentioning

confidence: 99%

Sensitive Simultaneous Determination of Hydroquinone and Catechol Based on BCN Graphene and Poly(alizarin red S)

Wang

Guo

et al. 2014

J. Electrochem. Soc.

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A highly sensitive electrochemical sensor for the simultaneous determination of catechol (CC) and hydroquinone (HQ) was manufactured by electrochemical polymerization of alizarin red S (ARS) onto graphene doped with B and N on a glassy carbon electrode (GCE) using cyclic voltammetry (CV). The composite film showed excellent electrocatalytic activity and reversibility toward the oxidation of both CC and HQ in 0.1 M phosphate buffer solution (PBS, pH 6.5). Synchronously, the oxidation peak potentials of CC and HQ become separated by 101 mV, which ensured the anti-interference ability of the sensor and made simultaneous detection of CC and HQ possible in real samples. The peak currents increased linearly with their concentration over the range of 1.0 × 10 −6 to 1.0 × 10 −4 M, and the detection limits for CC and HQ were 1.1 × 10 −7 M and 1.9 × 10 −7 M (S/N = 3), respectively. The developed sensor was successfully examined for real sample analysis with lake water and it showed a stable and reliable recovery data.Catechol (CC, o-quinone) and hydroquinone (HQ, 1,4-benzoquinone) are two isomers of phenolic compounds, which are widely used in dye, tanning, pesticides, flavoring agents, cosmetics and medicines. 1 These compounds with high toxicity and low degradability are considered to be significant environmental pollutants by the US Environmental Protection Agency (EPA) and the European Union (EU), 2 which are grievous injury to plants, animals and natural environments even at very low concentration. 3,4 What's more, these compounds can lead to headache, tachycardia, fatigue at high concentration. 5,6 Therefore, it is important to find a simple, fast and reliable analytical method for selective and sensitive determination of CC and HQ. Up to now, a variety of approaches have been developed, including gas chromatography/mass spectrometry, 7 synchronous fluorescence, 8 liquid chromatography/ultraviolet spectrometry, 9,10 chemiluminescence, 11,12 pH based-flow injection analysis 13 and spectrophotometry. 14,15 Nevertheless, most of these methods are either time-consuming or require sophisticated and expensive instruments, well controlled experimental conditions and some sample pretreatments. 16 In recent years, electrochemical methods are preferable over all these proposed methods for the simultaneous detection of such analytes as they are not only sensitive and simple but more feasible for miniaturization of analysis. 17 Alizarin red S (ARS) is a kind of anthraquinone dyestuff with electrochemical activity. 18 And due to dihydroxy and anthraquinone in the molecule, ARS after quasireversible reduction can give a stable polymeric alizarin red S (PARS). 19 It has been successfully deposited onto the glassy carbon electrode surface and used to detect small organic compounds. 20 And chitosan (CS) is an important natural biopolymer with abundant amino and hydroxyl groups, which is suitable used to construct sensors due to its good adhesion and good film formation ability. 21 As a monolayer of carbon atoms closely packed into tw...

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“…The sensor signal increased linearly with elevated concentrations of catechol, ranging from 1.0 to 80 mM, with a detection limit of 0.3 mM. Nanostructured materials based electrochemical sensing platforms for phenolic compounds including phenylamine, 162 o and paminophenol, 163 polychlorinate biphenyl, 164 catechol, [165][166][167][168][169] hydroquinone, 166,167,170 p-chlorophenol, 171 bisphenol A, 172 phenol, 168 1,3,5-trinitrophenol, 173 nitrobenzene, 173 are also comprised and listed in Table 1. The composite of MWCNT-poly(diphenylamine) modied GC electrode was used for the amperometric detection of p-nitrophenol in pH 7.…”

Section: Detection Of Phenolic Compoundsmentioning

confidence: 99%

Nanomaterials-based electrochemical detection of chemical contaminants

2014

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Owing to the high toxicity and detrimental effects of chemical contaminants to human health and the environment, public concerns over chemical contaminants in the environment and in foods have been mounting drastically. It is therefore significant to monitor contaminants via portable sensing devices, which encompass the demands of being low-cost and the potential for online environmental monitoring and food safety applications. This review will assess various concepts and recent advancements in design and the application of state-of-the-art nanomaterials through the incorporation of carbon nanomaterials, metallic and metallic oxide nanoparticles, titanium dioxide nanotubes, and dendrimers toward the development of electrochemical sensors for the detection of chemical contaminants in the environment and in foods. The development of nanomaterials based sensors facilitated by recent advances is having a major impact on sensor industries for environmental and food safety monitoring.Electrochemical sensing strategies have spurred intense interest in the research community as they have the capacity to serve as ideal sensor technology candidates, having such features as rapid response, robustness, high sensitivity and selectivity, low cost, miniaturization, and the potential for real-time monitoring. Nanomaterials have strong potential for increasing the competitiveness of new sensors for environmental monitoring and food safety applications through the combination of efficacious, yet simple fabrication techniques in the development of critical nanometric interfaces, and the optimization of their design and performance. Opportunities and future considerations for the use of nanomaterials in electrochemical sensors for producing advanced environmental and food sensing devices will also be addressed.

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Electrochemical sensor for hydroquinone and catechol based on electrochemically reduced GO–terthiophene–CNT

Cited by 81 publications

References 45 publications

Thermodynamic and electrochemical study of some dihydroxybenzenes in the presence of different nucleophiles

Thermodynamic and electrochemical study of some dihydroxybenzenes in the presence of different nucleophiles

Sensitive Simultaneous Determination of Hydroquinone and Catechol Based on BCN Graphene and Poly(alizarin red S)

Nanomaterials-based electrochemical detection of chemical contaminants

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