Studying electrode mechanism and analytical determination of cocaine and its metabolites at the mercury electrode using square-wave voltammetry

2004 ◽  
Vol 512 (1) ◽  
pp. 49-56 ◽  
Author(s):  
Valentina Pavlova ◽  
Valentin Mirčeski ◽  
Šebojka Komorsky-Lovrić ◽  
Simka Petrovska-Jovanović ◽  
Blagoj Mitrevski
Keyword(s):  
Square Wave Voltammetry ◽  
Mercury Electrode ◽  
Analytical Determination ◽  
Square Wave ◽  
Wave Voltammetry

scholarly journals Quantitative determination of glycyrrhizinic acid by square-wave voltammetry and high-pressure liquid chromatography

2003 ◽  
Vol 48 ◽  
pp. 3-8
Author(s):  
Aneta Dimitrovska ◽  
Valentin Mircevski ◽  
Svetlana Kulevanova
Keyword(s):  
High Pressure ◽  
Quantitative Determination ◽  
Electrode Surface ◽  
Square Wave Voltammetry ◽  
Mercury Electrode ◽  
Voltammetric Method ◽  
Square Wave ◽  
Glycyrrhizinic Acid ◽  
Wave Voltammetry

Novel adsorptive stripping square-wave voltammetric method as well as a new high-pressure liquid chromatographic method for direct determination of glycyrrhizinic acid in dosage pharmaceutical preparation, used against virus infections, have been developed. Glycyrrhizinic acid is an electrochemically active compound, which undergoes irreversible reduction on a mercury electrode surface in an aqueous medium. Its redox properties were studied thoroughly by means of square-wave voltammetry, as one of the most advanced electroanalytical technique. The voltammetric response depends mainly on the pH of the medium, composition of the supporting electrolyte, as well as the parameters of the excitement signal. It was also observed that the voltammetric properties strongly depend on the accumulation time and potential, revealing significant adsorption of glycyrrhizinic acid onto the mercury electrode surface. Upon this feature, an adsorptive stripping voltammetric method for quantitative determination of glycyrrhizinic acid was developed. A simple, sensitive and precise reversed phase HPLC method with photodiode array UV detection has also been developed, mainly for comparison and conformation of the results obtained with the voltammetric method.

Analytical determination of nimesulide and ofloxacin in pharmaceutical preparations using square-wave voltammetry

2013 ◽  
Vol 69 (1) ◽  
pp. 62-71 ◽  
Author(s):  
Francisco W. P. Ribeiro ◽  
Thisiania R. V. Soares ◽  
Sameque do N. Oliveira ◽  
Luisa C. Melo ◽  
Janete E. Soares ◽  
...  
Keyword(s):  
Square Wave Voltammetry ◽  
Pharmaceutical Preparations ◽  
Analytical Determination ◽  
Square Wave ◽  
Wave Voltammetry

Analytical Determination of Nimesulide and Ofloxacin in Pharmaceutical Preparations Using Square-Wave Voltammetry

2014 ◽  
Vol 69 (1) ◽  
pp. 67-76
Author(s):  
Francisco W. P. Ribeiro ◽  
Thisiania R. V. Soares ◽  
Sâmeque do N. Oliveira ◽  
Luisa C. Melo ◽  
Janete E. Soares ◽  
...  
Keyword(s):  
Square Wave Voltammetry ◽  
Pharmaceutical Preparations ◽  
Analytical Determination ◽  
Square Wave ◽  
Wave Voltammetry

The Use of Ultrasound for the Analytical Determination of Nitrite on Diamond Electrodes by Square Wave Voltammetry

2007 ◽  
Vol 40 (14) ◽  
pp. 2673-2682 ◽  
Author(s):  
Robson T. S. Oliveira ◽  
Gustavo S. Garbellini ◽  
Giancarlo R. Salazar‐Banda ◽  
Luis A. Avaca
Keyword(s):  
Square Wave Voltammetry ◽  
Analytical Determination ◽  
Diamond Electrodes ◽  
Square Wave ◽  
Wave Voltammetry

Simultaneous determination of ascorbic and uric acids and dopamine in human serum samples using three-way calibration with data from square wave voltammetry

2016 ◽  
Vol 129 ◽  
pp. 205-212 ◽  
Author(s):  
Adrian Marcelo Granero ◽  
Gastón Darío Pierini ◽  
Sebastián Noel Robledo ◽  
María Susana Di Nezio ◽  
Héctor Fernández ◽  
...  
Keyword(s):  
Human Serum ◽  
Simultaneous Determination ◽  
Square Wave Voltammetry ◽  
Serum Samples ◽  
Square Wave ◽  
Human Serum Samples ◽  
Wave Voltammetry
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