Vali Alizadeh*
Department of Petroleum Engineering, Faculty of Engineering, University of Garmsar, Pobox:3581755796, Garmsar, Iran, *Email: valializadeh.chem@gmail.com
Mehdi Asgari
Technical Department, ARA G. T. Company, Dubai, United Arab Emirates
References
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Figure Captions
Fig.1 The FT-IR spectra of un-leached (NIP) and leached zinc imprinted polymers (IIP)
Fig.2 The SEM image of the three-dimensionally microporous structure of IIP-MWCNT films on the GCE surface
Fig.3 TGA curve of synthesized IIP
Fig.4 (A) Cyclic voltammograms of bare GCE and IIP-MWCNT/GCE modified electrode in presence of 5 mM K4Fe(CN)6, 0.1 M phosphate buffer solution (pH7.0) at a scan rate of 50 mVs-1. (B) Nyquist plots for bare GCE (▲) and IIP-MWCNT/GCE (■) in 5 mM Fe(CN)63-/Fe(CN)64-, 0.1 M PBS solution (pH7.0), and at potential 250 mV. The frequency was swept from 100 to 0.01 kHz; modulation potential 10 mV
Fig.5 Effect of pH upon the stripping voltammetric response of 1.0×10-6 M Zn (II). The square wave voltammograms were recorded at scan rate of 50 mVs-1; pulse amplitude, 50 mV
Fig.6 (A) Effect of accumulation time upon the response to 1.0×10-6 M Zn (II) after accumulation potential of -500 mV and pH 3.7 at scan rate of 0.05Vs-1 and pulse amplitude of 0.05 V.(B) Effect of accumulation potential upon the response to 1.0×10-6 M Zn (II) after accumulation for 800s
Fig.7 Square wave Stripping voltammograms for concentration of Zn (II) from 0.001- 1.5 nM. The square wave voltammograms were recorded at scan rate of 0.05 V s-1 and pulse amplitude of 0.05 V. Accumulation time and the accumulation potential were 800 s and -400 mV, respectively. (Inset) Calibration curve of Zn (II)