Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution
Apstrakt
Electrochemical behavior of sildenafil citrate (SC) at gold and cystein (Cys) modified gold electrode (AulCys) in 0.1 M H2SO4 was investigated by cyclic voltammetry (CV) and by square wave voltammetry (SWV). Effect of scan rate on the CVs of SC standard was performed in order to examine the mode of transport and irreversibility of process. SC as standard is determined by SWV in acid solution at Au electrode in a range: 10(-3), 10(-2) 0.1, 0.5, 1 mu M and on Au/Cys in a range: 10(-3), 10(-2) 0.05, 0.1 mu M. The presence of Cys causes two-time larger peak currents and shifting of the incipient potential of the SC oxidation to 0.1 V in negative direction. In investigated range of concentration of SC standard in acid solution on modified and unmodified Au electrodes SWV method have excellent linear regression coefficient with value 0.997 promoting SWV for reliable determination of SC.
Ključne reči:
Sildenafil citrate standard / cystein modified electrode / sensitivity / quantitative analysisIzvor:
Journal of Electrochemical Science and Engineering, 2018, 8, 2, 163-170Izdavač:
- Int Assoc Physical Chemists-Iapc, Zagreb
Finansiranje / projekti:
- Nov pristup dizajniranju materijala za konverziju i skladištenje energije (RS-MESTD-Basic Research (BR or ON)-172060)
- Proučavanje sinteze, strukture i aktivnosti organskih jedinjenja prirodnog i sintetskog porekla (RS-MESTD-Basic Research (BR or ON)-172013)
DOI: 10.5599/jese.481
ISSN: 1847-9286
WoS: 000432822800006
Scopus: 2-s2.0-85094573172
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Lović, Jelena AU - Trišović, Nemanja AU - Antanasijević, Jelena AU - Avramov-Ivić, Milka PY - 2018 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4009 AB - Electrochemical behavior of sildenafil citrate (SC) at gold and cystein (Cys) modified gold electrode (AulCys) in 0.1 M H2SO4 was investigated by cyclic voltammetry (CV) and by square wave voltammetry (SWV). Effect of scan rate on the CVs of SC standard was performed in order to examine the mode of transport and irreversibility of process. SC as standard is determined by SWV in acid solution at Au electrode in a range: 10(-3), 10(-2) 0.1, 0.5, 1 mu M and on Au/Cys in a range: 10(-3), 10(-2) 0.05, 0.1 mu M. The presence of Cys causes two-time larger peak currents and shifting of the incipient potential of the SC oxidation to 0.1 V in negative direction. In investigated range of concentration of SC standard in acid solution on modified and unmodified Au electrodes SWV method have excellent linear regression coefficient with value 0.997 promoting SWV for reliable determination of SC. PB - Int Assoc Physical Chemists-Iapc, Zagreb T2 - Journal of Electrochemical Science and Engineering T1 - Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution EP - 170 IS - 2 SP - 163 VL - 8 DO - 10.5599/jese.481 ER -
@article{ author = "Lović, Jelena and Trišović, Nemanja and Antanasijević, Jelena and Avramov-Ivić, Milka", year = "2018", abstract = "Electrochemical behavior of sildenafil citrate (SC) at gold and cystein (Cys) modified gold electrode (AulCys) in 0.1 M H2SO4 was investigated by cyclic voltammetry (CV) and by square wave voltammetry (SWV). Effect of scan rate on the CVs of SC standard was performed in order to examine the mode of transport and irreversibility of process. SC as standard is determined by SWV in acid solution at Au electrode in a range: 10(-3), 10(-2) 0.1, 0.5, 1 mu M and on Au/Cys in a range: 10(-3), 10(-2) 0.05, 0.1 mu M. The presence of Cys causes two-time larger peak currents and shifting of the incipient potential of the SC oxidation to 0.1 V in negative direction. In investigated range of concentration of SC standard in acid solution on modified and unmodified Au electrodes SWV method have excellent linear regression coefficient with value 0.997 promoting SWV for reliable determination of SC.", publisher = "Int Assoc Physical Chemists-Iapc, Zagreb", journal = "Journal of Electrochemical Science and Engineering", title = "Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution", pages = "170-163", number = "2", volume = "8", doi = "10.5599/jese.481" }
Lović, J., Trišović, N., Antanasijević, J.,& Avramov-Ivić, M.. (2018). Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution. in Journal of Electrochemical Science and Engineering Int Assoc Physical Chemists-Iapc, Zagreb., 8(2), 163-170. https://doi.org/10.5599/jese.481
Lović J, Trišović N, Antanasijević J, Avramov-Ivić M. Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution. in Journal of Electrochemical Science and Engineering. 2018;8(2):163-170. doi:10.5599/jese.481 .
Lović, Jelena, Trišović, Nemanja, Antanasijević, Jelena, Avramov-Ivić, Milka, "Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution" in Journal of Electrochemical Science and Engineering, 8, no. 2 (2018):163-170, https://doi.org/10.5599/jese.481 . .