A cation trap for anodic stripping voltammetry: NH3–plasma treated carbon nanotubes for adsorption and detection of metal ions

2012 ◽  
Vol 755 ◽  
pp. 54-61 ◽  
Author(s):  
Yan Wei ◽  
Ran Yang ◽  
Xing Chen ◽  
Lun Wang ◽  
Jin-Huai Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Metal Ions ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Anodic Stripping ◽  
Treated Carbon

Detection of Trace Heavy Metal Ions by Anodic Stripping Voltammetry Using Gold Nanoparticles/L-Cysteine Composite

2016 ◽  
Vol 14 (9) ◽  
pp. 955-960 ◽  
Author(s):  
Khaoula Zinoubi ◽  
Yosra Braham ◽  
Houcine Barhoumi ◽  
Messaoud Benounis ◽  
Nicole Jaffrezic
Keyword(s):  
Heavy Metal ◽  
Gold Nanoparticles ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Anodic Stripping

Overoxidized Polypyrrole/Sodium Dodecyl Sulfate/Single Wall Carbon Nanotubes Matrix for the Simultaneous Electrochemical Determination of Heavy Metal Ions by Adsorptive Stripping Voltammetry

2020 ◽  
Vol 18 (11) ◽  
pp. 811-818
Author(s):  
Sarra Slimi ◽  
Houcine Barhoumi ◽  
Nicole Jaffrezic-Renault
Keyword(s):  
Carbon Nanotubes ◽  
Metal Ions ◽  
Anodic Stripping Voltammetry ◽  
Sodium Dodecyl ◽  
Stripping Voltammetry ◽  
Electrochemical Determination ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Lead And Cadmium ◽  
Overoxidized Polypyrrole

In this work, we report an overoxidized polypyrrole (oPPy)/single-wall carbon nanotubes (SWCNTs) matrix, electrochemically coated onto a glassy carbon electrode (GCE). This matrix was characterized by AFM, FTIR, and cyclic voltammetry. It is shown that the developed permslective matrix allows the simultaneous quantification of multiple metal ions, including zinc, cadmium, and lead, using square wave anodic stripping voltammetry. The sensitivities of the oPPy/SWCNTs/GCE for Zn2+, Cd2+, and Pb2+ are respectively, 8.89, 41.3, and 45.4 μA mol L~1. The detection limits of Cd2+ and Pb2+ were found to be respectively equal to 37 μg/L and 69 μg/L In addition, the developed oPPy/SWCNTs based sensor has been successfully used for the detection of lead and cadmium in wastewater samples.

Disturbance of a Film of Triton X-100 on the Hanging Mercury Drop Electrode during the Determination of Metal Ions by Anodic Stripping Voltammetry

1993 ◽  
Vol 58 (2) ◽  
pp. 291-294 ◽  
Author(s):  
M. Krystyna Pawlak
Keyword(s):  
Metal Ions ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Hanging Mercury Drop Electrode ◽  
Mercury Drop Electrode ◽  
Anodic Stripping ◽  
The Stability ◽  
Triton X

The effect of electroreduction of Zn(II), Cd(II), Pb(II) and Cu(II) ions on the stability of a film of the surfactant Triton X-100 on the surface of hanging mercury drop electrode was investigated. A procedure is suggested to disturb the film in order to facilitate the determination of the above metal ions by anodic stripping voltammetry with accumulation.

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