Characterization of an electrochemical mercury sensor using alternating current, cyclic, square wave and differential pulse voltammetry

2014 ◽  
Vol 810 ◽  
pp. 79-85 ◽  
Author(s):  
Gabriela V. Guerreiro ◽  
Anita J. Zaitouna ◽  
Rebecca Y. Lai
Keyword(s):  
Differential Pulse Voltammetry ◽  
Differential Pulse ◽  
Alternating Current ◽  
Square Wave ◽  
Pulse Voltammetry ◽  
Mercury Sensor

scholarly journals Synthesis and electrochemical characterization of substituted indolizine carboxylates

2013 ◽  
Vol 78 (6) ◽  
pp. 827-838 ◽  
Author(s):  
Maria-Laura Soare ◽  
Eleonora-Mihaela Ungureanu ◽  
Emilian Georgescu ◽  
Liviu Birzan
Keyword(s):  
Cyclic Voltammetry ◽  
Differential Pulse Voltammetry ◽  
Electrochemical Behaviour ◽  
Substituent Effects ◽  
Detailed Comparison ◽  
Differential Pulse ◽  
Synthesis And Characterization ◽  
Redox Processes ◽  
Pulse Voltammetry

This work is devoted to the synthesis and characterization of new indolizine derivatives. Particular attention was paid to the electrochemical investigations by cyclic voltammetry and differential pulse voltammetry. The redox processes for each compound were established, analyzed and assessed to the particular functional groups at which they take place. This assessment was based on detailed comparison between the electrochemical behaviour of the compounds, similarities in their structure, as well as substituent effects.

Voltammetric Determination of Fluoren-9-ol and 2-Acetamidofluorene Using Carbon Paste Electrodes

2005 ◽  
Vol 70 (3) ◽  
pp. 292-304 ◽  
Author(s):  
Natalija German ◽  
Saulius Armalis ◽  
Jiří Zima ◽  
Jiří Barek
Keyword(s):  
Differential Pulse Voltammetry ◽  
Square Wave Voltammetry ◽  
Limit Of Detection ◽  
Differential Pulse ◽  
Carbon Paste ◽  
Square Wave ◽  
Carbon Paste Electrodes ◽  
Wave Voltammetry ◽  
Pulse Voltammetry

Square wave voltammetry and differential pulse voltammetry have been used for the determination of 2-acetamidofluorene and fluoren-9-ol using carbon paste electrodes, following the study of the influence of the carbon paste composition on the voltammetric signals of the analytes. The methods are based on the oxidation of the above compounds and they include adsorptive accumulation of the analyte on the surface of the working electrode. The limit of detection was 1 μmol l-1for fluoren-9-ol in a medium of 0.1 M H2SO4, and 40 nmol l-1for 2-acetamidofluorene in Britton-Robinson buffer (pH 7).

scholarly journals Characterization of Cr-Curcumin Complex by Differential Pulse Voltammetry and UV-Vis Spectrophotometry

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Maurice O. Iwunze
Keyword(s):  
Differential Pulse Voltammetry ◽  
Experimental Error ◽  
Differential Pulse ◽  
Free Energy Of Formation ◽  
Pulse Voltammetry ◽  
Gibb’S Free Energy ◽  
The Stability ◽  
Experimental Values ◽  
Energy Of Formation

Differential Pulse Voltammetry (DPV) and UV-Vis techniques were used in characterizing the complexation of chromium with curcumin. It was observed that chromium complexed with curcumin in a 1 : 3 ratio. The experimental values that were used to calculate this ratio were independently determined by the two techniques used. The values obtained from each technique agree with each other reasonably well, within limits of experimental error. The stability constant or formation constant, Kf, of the complex, 1.58×1010, was determined using the Lingane equation and Gibb’s free energy of formation was calculated as −58.18 kJ.

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