Determination of chromium(vi) by anodic stripping voltammetry using a silver-plated glassy carbon electrode

2018 ◽  
Vol 10 (24) ◽  
pp. 2917-2923 ◽  
Author(s):  
Zorica Stojanović ◽  
Zuzana Koudelkova ◽  
Eliska Sedlackova ◽  
David Hynek ◽  
Lukas Richtera ◽  
...  
Keyword(s):  
Glassy Carbon Electrode ◽  
Hexavalent Chromium ◽  
Glassy Carbon ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
Carbon Electrode ◽  
Chromium Vi ◽  
Anodic Stripping

In this work, differential pulse anodic stripping voltammetry (DP-ASV) for the determination of trace amounts of hexavalent chromium (Cr(vi)) at a silver plated glassy carbon electrode (Ag plated-GCE) is described in detail.

scholarly journals The effect of tamoxifen on the electrochemical behavior of Bi+3/Bi on the glassy carbon electrode and its determination via differential pulse anodic stripping voltammetry

2019 ◽  
Vol 63 (1) ◽  
Author(s):  
Mehdi Jalali ◽  
Zeinab Deris Falahieh ◽  
Mohammad Alimoradi ◽  
Jalal Albadi ◽  
Ali Niazi
Keyword(s):  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Electrochemical Behavior ◽  
Electrochemical Impedance ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
Peak Height ◽  
Carbon Electrode

The electrochemical behavior of Bi+3 ions on the surface of a glassy carbon electrode, in acidic media and in the presence of tamoxifen, was investigated. Cyclic voltammetry, chronoamperometry, differential pulse voltammetry, electrochemical impedance spectroscopy, and scanning electron microscopy with energy-dispersive X-ray spectroscopy were used to find the probable mechanism contributing to the reduction of the peak height of bismuth oxidation with an increase in the concentration of tamoxifen. The obtained results show a slight interaction between the bismuth species and tamoxifen which co-deposit on the surface of glassy carbon electrode. Therefore, the reduction in the peak height of bismuth oxidation as a function of tamoxifen concentration was used to develop a new differential pulse anodic striping voltammetry method for determination of trace amount of tamoxifen. The effects of experimental parameters on the in situ DPASV of Bi+3 ions in the presence of tamoxifen shown the optimal conditions as: 2 mol L-1 H2SO4 (1% v v-1 MeOH), a deposition potential of -0.5 V, a deposition time of 60 s, and a glassy carbon electrode rotation rate of 300 rpm. The calibration curve was plotted in the range of 0.5 to 6 µg mL-1 and the limits of detection and quantitation were calculated to be 3.1 × 10-5 µg mL-1 and 1.0 × 10-4 µg mL-1, respectively. The mean, RSD, and relative bias for 0.5 µg mL-1 (n=5) were found to be 0.49 µg mL-1, 0.3%, and 2%, respectively. Finally, the proposed method was successfully used for the determination of tamoxifen in serum and pharmaceutical samples.

Ultra-Sensitive Anodic Stripping Voltammetry for the Determination of Xanthine at a Glassy Carbon Electrode

2004 ◽  
Vol 144 (4) ◽  
pp. 249-256 ◽  
Author(s):  
Mohamed S. Ibrahim ◽  
Yassien M. Temerk ◽  
Moustafa M. Kamal ◽  
Gamal A.-W. Ahmed ◽  
Hossieny S. M. Ibrahim
Keyword(s):  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Carbon Electrode ◽  
Anodic Stripping

scholarly journals Determination of Mercury by Anodic Stripping Voltammetry with a Gold Nanoparticle-Modified Glassy Carbon Electrode

2008 ◽  
Vol 20 (1) ◽  
pp. 75-83 ◽  
Author(s):  
Ornella Abollino ◽  
Agnese Giacomino ◽  
Mery Malandrino ◽  
Giuseppina Piscionieri ◽  
Edoardo Mentasti
Keyword(s):  
Gold Nanoparticle ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Anodic Stripping
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