Electrochemical Determination of Indigotine Based on Poly(Gibberellic Acid)‐Modified Carbon Nanotube Paste Electrode

2021 ◽  
pp. 135-146
Author(s):  
Girish Tigari ◽  
Jamballi G. Manjunatha ◽  
Chenthattil Raril
Ionics ◽  
2014 ◽  
Vol 21 (1) ◽  
pp. 239-250 ◽  
Author(s):  
Mohammad Mazloum-Ardakani ◽  
Fariba Sabaghian ◽  
Alireza Khoshroo ◽  
Mahboobe Abolhasani ◽  
Hossein Naeimi

2021 ◽  
Vol 11 (6) ◽  
pp. 14661-14672

A poly(riboflavin) modified carbon nanotube paste electrode (PRFMCNTPE) is employed as a compatible and electrocatalytic sensor for the determination of Tyrosine (TYR). The analysis and assessment are carried out through differential pulse voltammetry (DPV) and Cyclic Voltammetry (CV). The surface of the intended sensor is examined through Field Emission Scanning Electron Microscopy (FE-SEM). The modified electrode shows the outstanding electrocatalytic effect for TYR with high selectivity and sensitivity as compared to carbon nanotube paste electrode (CNTPE). The electro-oxidation peak current of TYR and its concentration is found linear from 2 µM to 10 µM with a detection limit (LOD) of 0.45 µM. The developed sensor is productively applied for the determination of TYR in pharmaceutical samples like Tyrosine capsules. The adapted electrode shows good stability, excellent reproducibility, and remarkable sensitivity.


Sign in / Sign up

Export Citation Format

Share Document