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Detection of Cd (II) in Tape Water Sample Using Glassy Carbon Electrode Modified by Nano-Sized Ion Imprinted Polymer and Physically Modified Graphene Composite

Year: 1400
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Vali Alizadeh - Department of Petroleum Engineering, Faculty of Engineering, University of Garmsar, Pobox:۳۵۸۱۷۵۵۷۹۶,Garmsar, Iran
Nasrin Behnia - Islamic Azad University Central Tehran Branch, Tehran, Iran
Mehdi Asgari - Technical Department, ARA G. T. Company, Dubai, United Arab Emirates


A selective and sensitive electrochemical sensor was prepared by film coating of Cd (II) ion imprinted polymer (IIP) nanoparticle and Pyrenecarboxylic acid (Py)modified graphene (Gr) composite on glassy carbon electrode (GCE). The prepared electrochemical sensor was applied for the sensitive determination of Cd (II) ion by square wave anodic stripping voltammetry (SWASV) method. The GCE/IIP-Py-Gr modified electrode showed improved electrochemical behavior as compared to bare GC electrode. An optimum procedure was used for the fixation of Zn(II)-۸-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 Cd (II) ion. Py -Gr was applied in construction of as prepared modified electrode, exhibits large surface area, enhanced electron transfer kinetics, and improved Cd (II) ion diffusion. Under the optimal conditions, the resulting calibrationcurve exhibited a linear response within a concentration range of ۵×۱۰-۱۲ to ۱۵×۱۰-۸ mol/L-۱ with excellentdetection limit ۵×۱۰-۱۲mol/L-۱. Finally, the method was successfully applied for the determination of Cd (II) ion in the tape water sample successfully, and the obtained results were verified by inductively coupled plasma (ICP).


Imprinted Polymer , Graphene , Square wave Anodic Stripping Voltammetry , Glassy carbon electrode.

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Alizadeh, Vali and Behnia, Nasrin and Asgari, Mehdi,1400,Detection of Cd (II) in Tape Water Sample Using Glassy Carbon Electrode Modified by Nano-Sized Ion Imprinted Polymer and Physically Modified Graphene Composite,Fourth International Conference on Technology Development in Chemical Engineering,Tehran,

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