Voltammetric Study of Dipyrone Using Glassy Carbon Electrode - Tesfaye, Alemu;Sergawie, Assefa
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Dipyrone is a well known water soluble white crystalline powder, a non-opiate and non-steroidal anti-inflammatory analgesic drug (NSAID) which belongs to the group of pyrazolones and widely used as analgesic, antipyretic, and antispasmodic drug in many pharmaceutical dosage forms. This work was aimed to develop suitable voltammetric methods such as CV, SW, and DPV for dipyrone study using glassy carbon electrode and to study the electrochemical behavior of dipyrone in a buffer solution at different concentrations, pH, and scan rates. In cyclic voltammetry and square wave voltammetry…mehr

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Produktbeschreibung
Dipyrone is a well known water soluble white crystalline powder, a non-opiate and non-steroidal anti-inflammatory analgesic drug (NSAID) which belongs to the group of pyrazolones and widely used as analgesic, antipyretic, and antispasmodic drug in many pharmaceutical dosage forms. This work was aimed to develop suitable voltammetric methods such as CV, SW, and DPV for dipyrone study using glassy carbon electrode and to study the electrochemical behavior of dipyrone in a buffer solution at different concentrations, pH, and scan rates. In cyclic voltammetry and square wave voltammetry techniques, dipyrone undergoes four consecutive irreversible oxidation reactions at different oxidation potentials. While using differential pulse voltammetry, dipyrone undergoes two consecutive irreversible oxidation reactions. The peak at 0.45 V shows consistent behavior in all the techniques used under different experimental conditions. The anodic peak current of dipyrone decreases as pH increases but at higher pH the first oxidation reaction takes place at lower potential. the effect of concentration and scan rate is the same for all techniques.
Autorenporträt
Alemu Tesfaye, MSc in Physical Chemistry: Studied at Bahir Dar University, Ethiopia, and Lecturer in this university. Now I am a PhD student in National Taiwan University of Science and Technology (NTUST), Taiwan. When I was a Bachelor Degree holder I thought chemistry for more than ten years in different high schools.