Electrochemical behavior and determination of gold at chemically modified carbon paste electrode by the ethylenediamine fixed humic acid preparation

1998 ◽  
Vol 361 (1-2) ◽  
pp. 133-139 ◽  
Author(s):  
Chunming Wang ◽  
Haoli Zhang ◽  
Yi Sun ◽  
Hulin Li
Keyword(s):  
Humic Acid ◽  
Carbon Paste Electrode ◽  
Electrochemical Behavior ◽  
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>

Determination of sparfloxacin and besifloxacin hydrochlorides using gold nanoparticles modified carbon paste electrode in micellar medium

RSC Advances ◽  
2016 ◽  
Vol 6 (46) ◽  
pp. 39605-39617 ◽  
Author(s):  
Ali K. Attia ◽  
Amr M. Badawy ◽  
Samr G. Abd-Elhamid
Keyword(s):  
Gold Nanoparticles ◽  
Carbon Paste Electrode ◽  
Electrochemical Behavior ◽  
Modified Carbon Paste Electrode ◽  
Micellar Medium ◽  
Carbon Paste ◽  
Paste Electrode

Determination of sparfloxacin and besifloxacin hydrochlorides using gold nanoparticles modified carbon paste electrode in micellar medium AuCPE was used to study the electrochemical behavior of SPAR and BESI using CV and DPV in presence of SDS.

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