High sensitive simultaneously electrochemical detection of hydroquinone and catechol with a poly(crystal violet) functionalized graphene modified carbon ionic liquid electrode

Sun, Wei; Wang, Yuhua; Lu, Yongxi; Hu, Anhui; Shi, Fan; Sun, Zhenfan

doi:10.1016/j.snb.2013.07.032

Cited by 72 publications

(25 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…10 However, the individual or simultaneous determination of dihydroxybenzene isomers at conventional electrodes are very difficult and challenging tasks as they have similar structural characteristic properties and signal overlapping of each isomer occurs leading to fouling of the signal at the electrodes. 11,12 To overcome these problems, modied electrodes have been used for the individual or simultaneous determination of HQ, CC and RC. To date, various nanomaterials including carbon nanomaterials, conducting and redox active polymers and so on have been employed in modied electrodes to attain better sensitivity and selectivity for individual or simultaneous determination of dihydroxybenzene isomers.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous and selective electrochemical determination of dihydroxybenzene isomers at a reduced graphene oxide and copper nanoparticles composite modified glassy carbon electrode

et al. 2014

View full text Add to dashboard Cite

Herein, we have demonstrated the simultaneous and selective electrochemical determination of dihydroxybenzene isomers at a reduced graphene oxide (RGO) and copper nanoparticles (Cu-NPs) composite modified electrode. The RGO/Cu-NPs composite was prepared by a single-step electrochemical reduction method. The synthesized RGO/Cu-NPs composite was characterized using scanning electron microscopy and elemental analysis. Linear sweep voltammetry was employed for the simultaneous determination of hydroquinone (HQ), catechol (CC) and resorcinol (RC). A well defined and more enhanced oxidation peak response is observed for HQ, CC and RC at the RGO/Cu-NPs composite electrode compared to other modified electrodes, which indicates fast electron transfer from dihydroxybenzene isomers at the RGO/Cu-NPs composite electrode. The composite modified electrode shows high electrocatalytic activity towards the oxidation of HQ, CC and RC. The electrochemical sensor shows a wide linear response in the concentration range of 3 mM to 350 mM, 3 to 350 mM and 12 mM to 200 mM for HQ, CC and RC respectively with a detection limit of 0.032 mM, 0.025 mM and 0.088 mM (S/N ¼ 3). In addition, the proposed sensor shows good selectivity and stability along with good precision and consistency. The obtained results clearly demonstrate that the RGO/Cu-NPs composite can be an advanced electrode material for the real time sensing of dihydroxybenzene isomers.

show abstract

Section: Introductionmentioning

confidence: 99%

Simultaneous and selective electrochemical determination of dihydroxybenzene isomers at a reduced graphene oxide and copper nanoparticles composite modified glassy carbon electrode

et al. 2014

View full text Add to dashboard Cite

show abstract

“…[1][2][3][4][5][6][7][8][9][10] Surface modification is a field of paramount importance in the electrochemistry especially due to the various potential application possibilities of modified electrodes. [1][2][3][4][5][6][7][8][9][10] Surface modification is a field of paramount importance in the electrochemistry especially due to the various potential application possibilities of modified electrodes.…”

Section: Introductionmentioning

confidence: 99%

“…The recent interest in nanomaterials is due to their fascinating and useful characteristics with a promisingly great application potential . Surface modification is a field of paramount importance in the electrochemistry especially due to the various potential application possibilities of modified electrodes .…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive and Selective Polyaniline Nanofiber–Based Voltammetric Sensor for the Quantification of Tinidazole

et al. 2016

View full text Add to dashboard Cite

A voltammetric sensor is an effective tool for pharmaceutical analysis due to its simplicity, specificity, sensitivity, fast, cost-effectiveness, and repetitive measurements. A highly sensitive and selective sensor is fabricated based on a polyaniline-modified glassy carbon electrode. It is demonstrated that this sensor can be used for the determination of a pharmaceutically important compound tinidazole using square wave voltammetry, cyclic voltammetry, and electrochemical impedance spectroscopy. The electrode surface was characterized by scanning electron microscopy. The developed sensor also exhibited good reproducibility and long-term stability. Polyaniline nanofibers are expected to be a promising material for sensing applications because of the ease of fabrication, excellent electrochemical performance, and high electroactive surface area. C 2016 Wiley Periodicals, Inc. Adv Polym Technol 201 , , 21694; View this article online at wileyonlinelibrary.com.

show abstract

“…However, electrochemical methods have attracted significant interests due to their excellent sensitivity and cheap equipment. For example, a poly(crystal violet) functionalized graphene modified carbon ionic liquid electrode 8, a three‐dimensional functionalized graphene modified electrode 9 were developed for the simultaneous determination of HQ and CC.…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive and Simultaneous Detection of Hydroquinone and Catechol Using Poly(mercaptoacetic acid)/Exfoliated Graphene Composite Film‐modified Electrode

Tan

Shi

et al. 2015

Electroanalysis

View full text Add to dashboard Cite

Graphene nanosheets were facilely prepared through one‐step liquid‐phase exfoliation of graphite powder in N,N‐dimethylformamide (DMF) with the assistance of sodium citrate, and then employed to modify the surface of glassy carbon electrode (GCE) via solvent evaporation. Subsequently, mercaptoacetic acid (MA) was electrodeposited onto the surface of exfoliated graphene‐modified GCE (EG/GCE) to construct a composite film‐modified electrode (pMA/EG/GCE). The electrochemical behaviors of hydroquinone (HQ) and catechol (CC) were studied. It was found that the oxidation peak currents of HQ and CC increased obviously on the surface of EG/GCE and pMA/GCE, compared with those on bare GCE. However, the oxidation signals of HQ and CC further enhanced greatly on the surface of pMA/EG/GCE, showing strong synergetic enhancement effects. As a result, a highly sensitive electrochemical method was developed for the simultaneous determination of HQ and CC. The linear range was from 0.1 to 100 μmol L−1, and the detection limits were 85 and 80 nmol L−1 for HQ and CC (S/N=3).

show abstract

High sensitive simultaneously electrochemical detection of hydroquinone and catechol with a poly(crystal violet) functionalized graphene modified carbon ionic liquid electrode

Cited by 72 publications

References 39 publications

Simultaneous and selective electrochemical determination of dihydroxybenzene isomers at a reduced graphene oxide and copper nanoparticles composite modified glassy carbon electrode

Simultaneous and selective electrochemical determination of dihydroxybenzene isomers at a reduced graphene oxide and copper nanoparticles composite modified glassy carbon electrode

Highly Sensitive and Selective Polyaniline Nanofiber–Based Voltammetric Sensor for the Quantification of Tinidazole

Highly Sensitive and Simultaneous Detection of Hydroquinone and Catechol Using Poly(mercaptoacetic acid)/Exfoliated Graphene Composite Film‐modified Electrode

Contact Info

Product

Resources

About