Preparation of β-cyclodextrin functionalized reduced graphene oxide: application for electrochemical determination of paracetamol

RSC Advances ◽  
2015 ◽  
Vol 5 (94) ◽  
pp. 76973-76978 ◽  
Author(s):  
Li Fu ◽  
Guosong Lai ◽  
Aimin Yu

A sensitive electrochemical sensor of paracetamol was developed based on a β-CD/reduced graphene oxide modified electrode.

2021 ◽  
Author(s):  
Mohammad Kadivar ◽  
Alireza Aliakbar

A selective and sensitive electrochemical sensor based on reduced graphene oxide, gold nanoparticles, and molecularly imprinted poly 2-aminophenol was developed for electrochemical determination of flutamide in environmental and biological samples....


RSC Advances ◽  
2020 ◽  
Vol 10 (47) ◽  
pp. 28026-28031
Author(s):  
Hui-Yu Zou ◽  
Xin-Yang Lu ◽  
Fen-Ying Kong ◽  
Zhong-Xia Wang ◽  
Heng-Ye Li ◽  
...  

A novel electrochemical sensor for the sensitive determination of l-Tyr was designed with a rGO-H-Ag nanocomposite modified electrode.


Author(s):  
Pedro Borges ◽  
Edson Nossol

Reduced graphene oxide/ruthenium oxide hexacyanoferrate (rGO/RuOHCF) modified electrode showed synergic activity between the materials attested by the increase of electrochemical current and stability. The preparation of the nanocomposite was made by a simple two-step electrochemical approach. The material structure was characterized by spectroscopic techniques (Raman, infrared and energy-dispersive X-ray) as well as its morphology by scanning electron microscopy and compared to the analogously prepared reduced graphene oxide (rGO) and ruthenium oxide hexacyanoferrate (RuOHCF) thin films spectra and images. The results suggest that the improvement of the nanocomposite electrochemical activity is generated by the well-distributed RuOHCF nanometric particles over high-surfaced graphene sheets. Ethanol electrochemical oxidation in the rGO/RuOHCF modified electrode was performed in 0.1 mol L-1 NaCl (pH = 1.5) solution and it showed an anodic current peak starting at 0.9 V. Scan rate tests exhibited a diffusioncontrolled process not followed by any coupled chemical reaction. The determination of ethanol by amperometry coupled with batch injection analysis (BIA) system resulted in a wide linear range (20-400 mmol L-1) and good sensitivity (0.150 μA L mmol-1). The nanocomposite also showed application as an electrochemical sensor of ethanol in commercial samples mainly because of its easy preparation comparing to biosensors.


2018 ◽  
Vol 5 (2) ◽  
pp. 490-500 ◽  
Author(s):  
Subramanian Sakthinathan ◽  
Thangavelu Kokulnathan ◽  
Shen-Ming Chen ◽  
Raj Karthik ◽  
Te-Wei Chiu

A reduced graphene oxide decorated copper(ii) ethylenediamine complex composite modified electrode was applied for the electrochemical determination of hydroquinone.


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