Cyclic voltammetric behavior of [2 Fe—2 S] ferredoxins at a lipid bilayer modified electrode

1992 ◽  
Vol 342 (3) ◽  
pp. 381-391 ◽  
Author(s):  
Z. Salamon ◽  
G. Tollin
Keyword(s):  
Lipid Bilayer ◽  
Modified Electrode ◽  
Cyclic Voltammetric ◽  
Voltammetric Behavior

scholarly journals Cyclic Voltammetric Investigations of Thiazine Dyes on Modified Electrodes

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Amitabha Chakraborty ◽  
Shamsuzzaman Ahamed ◽  
Subrata Pal ◽  
Swapan K. Saha
Keyword(s):  
Diffusion Coefficient ◽  
Modified Electrode ◽  
Glassy Carbon ◽  
Electrochemical Behavior ◽  
Modified Electrodes ◽  
Electron Hopping ◽  
Cyclic Voltammetric ◽  
Peak Current ◽  
Quantitative Characteristics ◽  
Thiazine Dyes

Electrochemical behavior of five progressively alkylated thiazine dyes has been investigated at glassy carbon/montmorillonite and glassy carbon/zeolite electrodes. Quantitative characteristics, associated with the positions of peak potentials (Ea and Ec) and current ratios (ia/ic), are measured with scan rates. The peak current observed in the modified electrodes is dependent on both the porosity and nature and number of sites involved in partitioning the complex into film. The values of diffusion coefficient for different dyes have been calculated from electrochemical data. It is suggested that in clay-modified electrode along with physical diffusion the process of electron hopping seems to be most likely.

Cyclic Voltammetric Behavior and Some Surface Characteristics of the Lead Electrode in Aqueous NaI Solutions

1992 ◽  
Vol 65 (6) ◽  
pp. 1608-1616 ◽  
Author(s):  
A. Mohamed Abd El-Halim ◽  
Mohamed Hossam Fawzy ◽  
Sayed Sabet Abd El Rehim ◽  
Abd El Kader Saty
Keyword(s):  
Surface Characteristics ◽  
Cyclic Voltammetric ◽  
Lead Electrode ◽  
Voltammetric Behavior

scholarly journals Carbon ceramic electrode incorporated with zeolite ZSM-5 for determination of Piroxicam

2010 ◽  
Vol 8 (1) ◽  
pp. 155-162 ◽  
Author(s):  
Karim Asadpour-Zeynali ◽  
Mir Majidi ◽  
Mitra Zarifi
Keyword(s):  
Modified Electrode ◽  
Pharmaceutical Formulations ◽  
Differential Pulse ◽  
Solution Ph ◽  
Carbon Ceramic Electrode ◽  
Experimental Parameters ◽  
Voltammetric Behavior ◽  
Carbon Ceramic ◽  
Optimized Conditions

AbstractA new chemically modified electrode is constructed based on carbon ceramic electrode incorporated with zeolite ZSM-5. Voltammetric behavior of piroxicam at the carbon ceramic zeolite modified electrode (CCZME) was investigated. The modified electrode exhibited catalytic activity toward the electrooxidation of piroxicam. Experimental parameters such as solution pH, scan rate, concentration of piroxicam and zeolite amount were studied. It has been shown that using the CCZME, piroxicam can be determined by differential pulse voltammetry (DPV) and hydrodynamic amperometry (HA). Under the optimized conditions the calibration plots are linear in the concentration ranges of 0.20–25.00 and 0.20–50.10 μM with limit of detections of 0.65 and 0.29 μM for DPV and HA, respectively. The modified electrode with DPV and HA methods was successfully applied for analysis of piroxicam in pharmaceutical formulations. The results were favorably compared to those obtained by the spiked method. The results of the analysis suggest that the proposed method has promise for the routine determination of piroxicam in the products examined.

Study of the Voltammetric Behavior of Chloramphenicol and Its Determination At a Ni/C Modified Electrode

1998 ◽  
Vol 31 (2) ◽  
pp. 237-249 ◽  
Author(s):  
Zhao Min ◽  
Hu Jingbo ◽  
Lai Yongchun ◽  
Li Qilong ◽  
Wu Zhongda
Keyword(s):  
Modified Electrode ◽  
Voltammetric Behavior
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