Simultaneous Voltammetric Determination of Theophylline and Guaifenesin Using a Multiwalled Carbon Nanotube-Ionic Liquid Modified Glassy Carbon Electrode

2014 ◽  
Vol 26 (9) ◽  
pp. 1975-1983 ◽  
Author(s):  
Mohammad Bagher Gholivand ◽  
Mehdi Khodadadian
Keyword(s):  
Ionic Liquid ◽  
Carbon Nanotube ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Multiwalled Carbon Nanotube ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Multiwalled Carbon ◽  
Simultaneous Voltammetric Determination

Electrochemical reduction of sunset yellow at a multiwalled carbon nanotube (MWCNT)-modified glassy carbon electrode and its analytical application

2010 ◽  
Vol 88 (7) ◽  
pp. 676-681 ◽  
Author(s):  
Yuan-Zhi Song
Keyword(s):  
Carbon Nanotube ◽  
Electrochemical Reduction ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Multiwalled Carbon Nanotube ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Sunset Yellow ◽  
Multiwalled Carbon

The electrochemical reduction of sunset yellow at a multiwalled carbon nanotube (MWCNT)-modified glassy carbon electrode is investigated using cyclic voltammetry. A simple, sensitive, and inexpensive method for determination of sunset yellow in soft drinks is proposed and the accuracy and reproducibility of this determination method are evaluated. This method is satisfactorily applied for the determination of sunset yellow in soft drinks in the concentration range of 1.2–125.0 mg L–1 and 125.0–265.0 mg L–1, with a detection limit of 0.5 mg L–1.

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