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Electrochemical Studies of Terbutaline Sulfate at Sodium Alpha Olefin Sulphonate Modified Carbon Paste Electrode


Affiliations
1 Department of Studies and Research in Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Karnataka, India
2 Department of P.G. Studies and Research in Pharmaceutical Chemistry, Kadur Post Graduate Center, Kuvempu University, Karnataka (S), India
 

Electrochemical properties of terbutaline sulfate (TBS) at the carbon paste electrode modified with sodium alpha olefin sulphonate (SAOS) were explored by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The response was evaluated with respect to pH, scan rate concentration and other variables. The results indicated that TBS underwent irreversible oxidation at the modified electrode, which was a diffusion controlled process with two protons and two electrons. The TBS showed one well-resolved irreversible oxidation peak at around +624 mV, which served as the analytical response. The low detection limit (LOD) and low detection quantity (LOQ) of terbutaline sulfate has been found to be 0.6μM and 2.1 μM with a correlation coefficient of 0.99678. The modified electrode showed good sensitivity, selectivity and stability for the determination of TBS. 


Keywords

Terbutaline Sulfate, Sodium Alpha Olefin Sulphonate, Carbon Paste Electrode.
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  • Electrochemical Studies of Terbutaline Sulfate at Sodium Alpha Olefin Sulphonate Modified Carbon Paste Electrode

Abstract Views: 159  |  PDF Views: 1

Authors

C. T. Ramya Kumari
Department of Studies and Research in Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Karnataka, India
G. P. Mamatha
Department of P.G. Studies and Research in Pharmaceutical Chemistry, Kadur Post Graduate Center, Kuvempu University, Karnataka (S), India

Abstract


Electrochemical properties of terbutaline sulfate (TBS) at the carbon paste electrode modified with sodium alpha olefin sulphonate (SAOS) were explored by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The response was evaluated with respect to pH, scan rate concentration and other variables. The results indicated that TBS underwent irreversible oxidation at the modified electrode, which was a diffusion controlled process with two protons and two electrons. The TBS showed one well-resolved irreversible oxidation peak at around +624 mV, which served as the analytical response. The low detection limit (LOD) and low detection quantity (LOQ) of terbutaline sulfate has been found to be 0.6μM and 2.1 μM with a correlation coefficient of 0.99678. The modified electrode showed good sensitivity, selectivity and stability for the determination of TBS. 


Keywords


Terbutaline Sulfate, Sodium Alpha Olefin Sulphonate, Carbon Paste Electrode.