Development of a highly selective and sensitive electrochemical sensor for Bi3+ determination based on nano-structured bismuth-imprinted polymer modified carbon/carbon nanotube paste electrode

2017 ◽  
Vol 245 ◽  
pp. 605-614 ◽  
Author(s):  
Taher Alizadeh ◽  
Negin Hamidi ◽  
Mohamad Reza Ganjali ◽  
Parviz Nourozi
Keyword(s):  
Carbon Nanotube ◽  
Electrochemical Sensor ◽  
Imprinted Polymer ◽  
Carbon Nanotube Paste Electrode ◽  
Paste Electrode

scholarly journals Enhanced voltammetric detection of paracetamol by using carbon nanotube modified electrode as an electrochemical sensor

2019 ◽  
Vol 10 (1) ◽  
pp. 29-40 ◽  
Author(s):  
Madikeri M. Charithra ◽  
Jamballi G. Manjunatha
Keyword(s):  
Carbon Nanotube ◽  
Methyl Orange ◽  
Electrochemical Sensor ◽  
Pharmaceutical Formulations ◽  
Differential Pulse ◽  
Limit Of Quantification ◽  
Experimental Conditions ◽  
Voltammetric Detection ◽  
Carbon Nanotube Paste Electrode ◽  
Paste Electrode

New aspects associated with electro-catalytic activity of poly(methyl orange) modified carbon nanotube paste electrode (PMMCNTPE) towards the detection of paracetamol (PC) which is typically used worldwide as a pain reliever, were explored through implementation of cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. Bare carbon nanotube paste electrode (BCNTPE) was modified by methyl orange using the electro­polymerizing method. The effect of pH and influence of potential scan rate were resolved by means of CV technique. It was found that under optimized experimental conditions, PMMCNTPE imparts the analytical curve for PC in the concentration range of 2.0×10-6 – 5.0×10-5 M with detection limit of 3.8×10-8 M and limit of quantification of 1.2×10-8 M. The proposed sensor exhibited acceptable reproducibility, admirable stability, and adequate repeatability. The interference study of PC with dopamine (DA) and folic acid (FA) showed good selectivity of the designed sensor. The feasibility of the constructed electrochemical sensor to detect PC was successfully tested in some pharmaceutical formulations.

Multivariate Optimization Strategies in the Development of an Electroanalytical Method for the Assay of Metoclopramide Using Mercury-Film-Modified Carbon Nanotube Paste Electrode

2010 ◽  
Vol 83 (11) ◽  
pp. 1364-1366 ◽  
Author(s):  
Camila Bitencourt Mendes ◽  
Felipe Nascimento Andrade ◽  
Mariana Gava Segatelli ◽  
Arnaldo César Pereira ◽  
Douglas Cardoso Dragunski ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Multivariate Optimization ◽  
Mercury Film ◽  
Carbon Nanotube Paste Electrode ◽  
Electroanalytical Method ◽  
Paste Electrode

scholarly journals Rapid Electrochemical Monitoring of Tyrosine by Poly (Riboflavin) Modified Carbon Nanotube Paste Electrode as a Sensitive Sensor and its Applications in Pharmaceutical Samples

2021 ◽  
Vol 11 (6) ◽  
pp. 14661-14672
Keyword(s):  
Carbon Nanotube ◽  
Differential Pulse ◽  
Pharmaceutical Samples ◽  
Electrocatalytic Effect ◽  
Carbon Nanotube Paste Electrode ◽  
Sensitive Sensor ◽  
Electro Oxidation ◽  
Electrochemical Monitoring ◽  
Paste Electrode

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.

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