scholarly journals Electrochemically Reduced Graphene Oxide Modified Screen- Printed Electrodes for Sensitive Determination of Acetylsalicylic Acid

2017 ◽  
pp. 10177-10186 ◽  
Author(s):  
Chunzhi Zhao ◽  
Keyword(s):  
Graphene Oxide ◽  
Acetylsalicylic Acid ◽  
Reduced Graphene Oxide ◽  
Screen Printed Electrodes ◽  
Reduced Graphene ◽  
Electrochemically Reduced Graphene Oxide ◽  
Sensitive Determination ◽  
Screen Printed

Electrochemically reduced graphene oxide/Poly-Glycine composite modified electrode for sensitive determination of l-dopa

2017 ◽  
Vol 77 ◽  
pp. 394-404 ◽  
Author(s):  
Venkata Narayana Palakollu ◽  
Neeta Thapliyal ◽  
Tirivashe E. Chiwunze ◽  
Rajshekhar Karpoormath ◽  
Sivanandhan Karunanidhi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Modified Electrode ◽  
Reduced Graphene ◽  
Electrochemically Reduced Graphene Oxide ◽  
Sensitive Determination

scholarly journals Highly sensitive determination of non-steroidal anti-inflammatory drug nimesulide using electrochemically reduced graphene oxide nanoribbons

RSC Advances ◽  
2017 ◽  
Vol 7 (52) ◽  
pp. 33043-33051 ◽  
Author(s):  
Mani Govindasamy ◽  
Veerappan Mani ◽  
Shen-Ming Chen ◽  
Thandavarayan Maiyalagan ◽  
S. Selvaraj ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Carbon Electrode ◽  
Graphene Oxide Nanoribbons ◽  
Screen Printed Carbon Electrode ◽  
Reduced Graphene ◽  
Highly Sensitive ◽  
Electrochemically Reduced Graphene Oxide ◽  
Sensitive Determination

Preparation of an electrochemically reduced graphene nanoribbon (ER-GONR) film modified screen-printed carbon electrode for the highly sensitive determination of nimesulide.

scholarly journals Electrochemically Reduced Graphene Oxide-Based Screen-Printed Electrodes for Total Tetracycline Determination by Adsorptive Transfer Stripping Differential Pulse Voltammetry

Sensors ◽  
2019 ◽  
Vol 20 (1) ◽  
pp. 76 ◽  
Author(s):  
Anabela S. Lorenzetti ◽  
Tania Sierra ◽  
Claudia E. Domini ◽  
Adriana G. Lista ◽  
Agustin G. Crevillen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Differential Pulse Voltammetry ◽  
Reduced Graphene Oxide ◽  
Selective Adsorption ◽  
Differential Pulse ◽  
Screen Printed Electrodes ◽  
Reduced Graphene ◽  
Electrochemically Reduced Graphene Oxide ◽  
Pulse Voltammetry ◽  
Screen Printed

Disposable electrochemically reduced graphene oxide-based (ERGO) screen-printed electrodes (SPE) were developed for the determination of total tetracyclines as a sample screening approach. To this end, a selective adsorption-detection approach relied on adsorptive transfer stripping differential pulse voltammetry (AdTDPV) was devised, where the high adsorption capacity and the electrochemical properties of ERGO were simultaneously exploited. The approach was very simple, fast (6 min.), highly selective by combining the adsorptive and the electrochemical features of tetracyclines, and it used just 10 μL of the sample. The electrochemical sensor applicability was demonstrated in the analysis of environmental and food samples. The not-fully explored AdTDPV analytical possibilities on disposable nanostructured transducers become a new tool in food and environmental fields; drawing new horizons for “in-situ” analysis.

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.

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