A novel voltammetric sensor for sensitive detection of mercury(II) ions using glassy carbon electrode modified with graphene-based ion imprinted polymer

2016 ◽  
Vol 63 ◽  
pp. 367-375 ◽  
Author(s):  
Masoud Ghanei-Motlagh ◽  
Mohammad Ali Taher ◽  
Abolfazl Heydari ◽  
Reza Ghanei-Motlagh ◽  
Vinod K. Gupta
Keyword(s):  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Sensitive Detection ◽  
Carbon Electrode ◽  
Voltammetric Sensor ◽  
Ion Imprinted Polymer ◽  
Imprinted Polymer ◽  
Ion Imprinted

scholarly journals New Generation of Electrochemical Sensor for Sub-Nanomolar Zn (II) Ion Detection Based on Nano- Sized Ion Imprinted Polymer and Functionalized Multi-Walled Carbon Nanaotube Composite Modified Glassy Carbon Electrode

2021 ◽  
Author(s):  
Vali Alizadeh ◽  
Nasrin Behnia ◽  
Mehdi Asgari
Keyword(s):  
Electrochemical Sensor ◽  
Glassy Carbon Electrode ◽  
Modified Electrode ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Gravimetric Analysis ◽  
Ion Imprinted Polymer ◽  
Imprinted Polymer ◽  
Ion Imprinted

Abstract A new selective and sensitive electrochemical sensor was prepared by film coating of Zinc (II) ion imprinted polymer (IIP) nanoparticle and functionalized multi-walled carbon nanotube (MWCN) composite on glassy carbon electrode (GCE). The prepared electrochemical sensor was applied for the sensitive determination of Zinc (II) ion by square wave anodic stripping voltammetry (SWASV) method. The GCE/IIP-MWCNT modified electrode showed improved electrochemical behavior as compared to bare GC electrode. An optimum procedure was used for the fixation of Zn(II)-8-hydroxyquinoline to styrene-ethylene dimethacrylate copolymer and the resultant IIP nanoparticles characterized by Fourier Transform Infrared ( FTIR), thermal gravimetric analysis (TGA), and scanning electron microscopy (SEM). The effects of different experimental variables such as pH, deposition time, and deposition potential were optimized for electrochemical determinations. The resultant IIP showed a selective sorbent for Zinc (II) ion. Functionalized MWCNT was applied in construction of as prepared modified electrode, exhibits large surface area, enhanced electron transfer kinetics, and improved Zn (II) ion diffusion. Under the optimal conditions, the resulting calibration curve exhibited a linear response within a concentration range of 5×10-12 to 15×10-8 mol/L-1 with excellent detection limit 5×10-12mol/L-1. Finally, the method was successfully applied for the determination of zinc (II) ion in the real water samples, and the obtained results were verified by inductively coupled plasma (ICP).

scholarly journals Selective and sensitive electrochemical sensors based on an ion imprinting polymer and graphene oxide for the detection of ultra-trace Cd(ii) in biological samples

RSC Advances ◽  
2021 ◽  
Vol 11 (49) ◽  
pp. 30771-30780
Author(s):  
A. B. Abdallah ◽  
Mohamed R. El-kholany ◽  
A. F. S. Molouk ◽  
Tamer Awad Ali ◽  
A. A. El-Shafei ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Glassy Carbon ◽  
Electrochemical Sensors ◽  
Carbon Electrode ◽  
Ion Imprinted Polymer ◽  
Imprinted Polymer ◽  
Real Samples ◽  
Ion Imprinted ◽  
Ion Imprinting ◽  
Ultra Trace

New selective and sensitive electrochemical sensors were designed based on the deposition of a promising ion imprinted polymer (IIP) on the surface of glassy carbon electrode (GCE) for the detection and monitoring of Cd(ii) in different real samples.

Ultra-sensitive detection of tizanidine in commercial tablets and urine samples using zinc oxide coated glassy carbon electrode

2021 ◽  
pp. 106956
Author(s):  
Laxmi S. Killedar ◽  
Mahesh M. Shanbhag ◽  
Shweta J. Malode ◽  
Gangadhar B. Bagihalli ◽  
Supratim Mahapatra ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Urine Samples ◽  
Sensitive Detection ◽  
Carbon Electrode
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