scholarly journals Voltammetric behavior of a Chemically Modified Carbon Paste Electrode with Cadmium Nitroprusside Prepared in Different Water to Formamide Ratios

2020 ◽  
pp. 774-787
Author(s):  
Tamires Rocha Souza ◽  
Keyword(s):  
Carbon Paste Electrode ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Chemically Modified ◽  
Voltammetric Behavior ◽  
Paste Electrode

Study of the interaction of the lactase enzyme immobilized in a carbon nanotube matrix for the development of the chemically modified carbon paste electrode

2020 ◽  
Vol 20 ◽  
pp. 100592
Author(s):  
Aila Riany de Brito ◽  
Iasnaia Maria de Carvalho Tavares ◽  
Marise Silva de Carvalho ◽  
Adriana Jesus de Oliveira ◽  
Luiz Carlos Salay ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Carbon Paste Electrode ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Chemically Modified ◽  
Paste Electrode

scholarly journals Preparation and Charactreization Selective Electrode for Determination of CopperIon(II)

2016 ◽  
Vol 5 (4) ◽  
pp. 237
Author(s):  
Salwa Fares Rassi
Keyword(s):  
Carbon Paste Electrode ◽  
Linear Response ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Selective Electrode ◽  
Chemically Modified ◽  
Diphenyl Carbazide ◽  
Nernstian Slope ◽  
Paste Electrode

<span>Achemically modified carbon paste electrode with diphenyl carbazide the potentiometric determination of Cu(II) is demonstrated. The electrode exhibits linear response to Cu(II) over a wide concentration range (9.2×10−7-5.0×10−1) with Nernstian slope of 30±0.15 mV per decade. It has a response time of about 40 s and can be used for a period of two months with good reproducibility. The detection limit of this electrode was 7.0×10−7 M. The proposed electrode shows a very good selectivity for Cu(II) over a wide variety of metal ions. This chemically modified carbon paste electrode was successfully used for the determination of Cu(II) in various water samples solution and pharmaceutical formulation</span>

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