Simultaneous cyclic voltammetric determination of norepinephrine, ascorbic acid and uric acid using TX-100 modified carbon paste electrode

2012 ◽  
Vol 4 (3) ◽  
pp. 849 ◽  
Author(s):  
B. N. Chandrashekar ◽  
B. E. Kumara Swamy
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Carbon Paste Electrode ◽  
Voltammetric Determination ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Cyclic Voltammetric ◽  
Paste Electrode

Determination of dopamine in presence of ascorbic acid and uric acid using poly (Spands Reagent) modified carbon paste electrode

2015 ◽  
Vol 57 ◽  
pp. 378-386 ◽  
Author(s):  
Y. Veera Manohara Reddy ◽  
V. Prabhakara Rao ◽  
A. Vijaya Bhaskar Reddy ◽  
M. Lavanya ◽  
M. Venu ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Carbon Paste Electrode ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Paste Electrode

scholarly journals Electrochemical Determination of Dopamine and Uric Acid Using Poly(proline) Modified Carbon Paste Electrode: A Cyclic Voltammetric Study

2021 ◽  
Vol 15 (2) ◽  
pp. 153-160
Author(s):  
Edwin S. D’ Souza ◽  
◽  
Jamballi G. Manjunatha ◽  
Chenthattil Raril ◽  
◽  
...  
Keyword(s):  
Uric Acid ◽  
Modified Electrode ◽  
Carbon Paste Electrode ◽  
Oxidation Potential ◽  
Modified Carbon Paste Electrode ◽  
Current Response ◽  
Carbon Paste ◽  
Cyclic Voltammetric ◽  
Paste Electrode

A cyclic voltammetric technique was used for electropolymerisation of proline on the surface of carbon paste electrode and for individual and concurrent determination of dopamine (DA) and uric acid (UA). The surface morphology of the developed electrode was studied by using field emission scanning electron microscopy. The modified electrode showed a high current response towards DA as compared to the bare electrode. The developed modified electrode shows good catalytic activity with a different oxidation potential of DA and UA. The electrode process was found to be adsorption controlled. The developed method shows very good stability and reproducibility. Under the optimized conditions, the concentration range is (1‒2)∙10-4 M and the observed detection limit was 4.7∙10-6 M. The developed sensor was applied for the determination of DA in the real sample with a good recovery.

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