scholarly journals Electrochemical Behaviours of Guanine and Adenine and their Simultaneous Determination using a Three-Dimensional Porous Poly(dopamine)/Reduced Graphene Oxide-Modified Electrode

2020 ◽  
pp. 5287-5295
Author(s):  
Na Zhang ◽  
Keyword(s):  
Graphene Oxide ◽  
Simultaneous Determination ◽  
Reduced Graphene Oxide ◽  
Modified Electrode ◽  
Three Dimensional ◽  
Reduced Graphene ◽  
Guanine And Adenine ◽  
Porous Poly

scholarly journals Simultaneous Determination of Uric Acid and Xanthine Using a Poly(Methylene Blue) and Electrochemically Reduced Graphene Oxide Composite Film Modified Electrode

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Gen Liu ◽  
Wei Ma ◽  
Yan Luo ◽  
Deng-ming Sun ◽  
Shuang Shao
Keyword(s):  
Methylene Blue ◽  
Uric Acid ◽  
Graphene Oxide ◽  
Composite Film ◽  
Simultaneous Determination ◽  
Reduced Graphene Oxide ◽  
Modified Electrode ◽  
Reduced Graphene ◽  
Electrochemically Reduced Graphene Oxide

Poly(methylene blue) and electrochemically reduced graphene oxide composite film modified electrode (PMB-ERGO/GCE) was successfully fabricated by electropolymerization and was used for simultaneous determination of uric acid (UA) and xanthine (Xa). Based on the excellent electrocatalytic activity of PMB-ERGO/GCE, the electrochemical behaviors of UA and Xa were studied by cyclic voltammetry (CV) and square wave voltammetry (SWV). Two anodic sensitive peaks at 0.630 V (versus Ag/AgCl) for UA and 1.006 V (versus Ag/AgCl) for Xa were given by CV in pH 3.0 phosphate buffer. The calibration curves for UA and Xa were obtained in the range of 8.00 × 10−8~4.00 × 10−4 M and 1.00 × 10−7~4.00 × 10−4 M, respectively, by SWV. The detection limits for UA and Xa were3.00×10-8 M and5.00×10-8 M, respectively. Finally, the proposed method was applied to simultaneously determine UA and Xa in human urine with good selectivity and high sensitivity.

scholarly journals A Voltammetric Sensor Based on MgFe2 O4 Decorated on Reduced Graphene Oxide-modified Electrode for Sensitive and Simultaneous Determination of Catechol and Hydroquinone

2018 ◽  
Vol 30 (11) ◽  
pp. 2620-2627 ◽  
Author(s):  
Miloš Ognjanović ◽  
Dalibor M. Stanković ◽  
Martin Fabián ◽  
Aleksandar Vukadinović ◽  
Željko Prijović ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Simultaneous Determination ◽  
Reduced Graphene Oxide ◽  
Modified Electrode ◽  
Voltammetric Sensor ◽  
Reduced Graphene

A promising photoelectrochemical sensor based on a ZnO particle decorated N-doped reduced graphene oxide modified electrode for simultaneous determination of catechol and hydroquinone

RSC Advances ◽  
2014 ◽  
Vol 4 (89) ◽  
pp. 48522-48534 ◽  
Author(s):  
A. T. Ezhil Vilian ◽  
Muniyandi Rajkumar ◽  
Shen-Ming Chen ◽  
Chi-Chang Hu ◽  
Shakkthivel Piraman
Keyword(s):  
Graphene Oxide ◽  
Simultaneous Determination ◽  
Reduced Graphene Oxide ◽  
Modified Electrode ◽  
Nitrogen Doped ◽  
Electrochemical Application ◽  
Reduced Graphene ◽  
Photoelectrochemical Sensor

This paper describes the two-step synthesis of a nitrogen-doped reduced graphene oxide–ZnO (N-doped RGO–ZnO) nanocomposite and its photo electrochemical application.

Simultaneous determination of dihydroxybenzene isomers using a three-dimensional over-oxidized polypyrrole–reduced graphene oxide composite film electrode prepared by an electrochemical method

2020 ◽  
Vol 44 (46) ◽  
pp. 20294-20302
Author(s):  
Kai-li Song ◽  
Rui Li ◽  
Kun Li ◽  
Hao Yu
Keyword(s):  
Graphene Oxide ◽  
Composite Film ◽  
Simultaneous Determination ◽  
Reduced Graphene Oxide ◽  
Electrochemical Method ◽  
Three Dimensional ◽  
Dihydroxybenzene Isomers ◽  
Oxide Composite ◽  
Reduced Graphene

A 3D-over-oxidized polypyrrole–reduced graphene oxide composite film was prepared by an electrochemical procedure, which showed high electrochemical activity and good selectivity for simultaneous determination of dihydroxybenzene isomers.

A three dimensional Pt nanodendrite/graphene/MnO2 nanoflower modified electrode for the sensitive and selective detection of dopamine

2015 ◽  
Vol 3 (37) ◽  
pp. 7440-7448 ◽  
Author(s):  
Beibei Yang ◽  
Jin Wang ◽  
Duan Bin ◽  
Mingshan Zhu ◽  
Ping Yang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
Modified Electrode ◽  
Three Dimensional ◽  
Selective Detection ◽  
Ternary Composite ◽  
Reduced Graphene ◽  
Highly Sensitive

A highly sensitive and selective electrochemical sensor: a 3D hierarchical ternary composite including a Pt nanodendrite/reduced graphene oxide/MnO2 nanoflower modified electrode.

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