Electrochemical oxidation of food dye at nanosilica modified carbon electrode

2019 ◽  
Vol 18 ◽  
pp. 798-805
Author(s):  
Manju Reddy ◽  
Nagaraj Shetti ◽  
Deepti Nayak ◽  
Shweta Malode ◽  
Uday Muddapur
Keyword(s):  
Electrochemical Oxidation ◽  
Carbon Electrode ◽  
Food Dye

Electrochemical oxidation of 4-aryl-1,4-dihydropyrimidines on a carbon electrode

1989 ◽  
Vol 34 (7) ◽  
pp. 899-904 ◽  
Author(s):  
V. Kadysh ◽  
J. Stradins ◽  
H. Khanina ◽  
G. Duburs
Keyword(s):  
Electrochemical Oxidation ◽  
Carbon Electrode

scholarly journals Electrochemical oxidation of methylthiomethyleneisoquinolinium chloride — the first water soluble alkylthiomethylene substituted ammonium salt

2011 ◽  
Vol 9 (5) ◽  
pp. 840-845 ◽  
Author(s):  
Sylwia Smarzewska ◽  
Sławomira Skrzypek ◽  
Barbara Bachowska ◽  
Piotr Bałczewski ◽  
Witold Ciesielski
Keyword(s):  
Electrochemical Oxidation ◽  
Ammonium Salt ◽  
Glassy Carbon ◽  
Spectroscopic Method ◽  
Water Soluble ◽  
Carbon Electrode ◽  
Oxidation Peak ◽  
Citrate Buffer ◽  
Step Potential ◽  
Oxidation Peak Current

AbstractElectrochemical oxidation of methylthiomethyleneisoquinolinium chloride (MTMIQ), the first alkylthiomethyl substituted ammonium salt, which is fully miscible with water has been investigated by voltammetric (SWV) method using glassy carbon electrode. On the electrode, MTMIQ undergoes oxidation at the potential near Ep = 0.07V (vs. Ag/AgCl/3 M KCl). The influence of the pH of buffers, amplitude, frequency, step potential on the received signal was studied. The best results were obtained with a citrate buffer at a pH of 5. The oxidation peak current used for MTMIQ voltammetric determination was in the range of 2–8×10−5 mol L−1, LOD = 3.7×10−6, LOQ = 1.2×10−5. The product of the oxidation was accumulated at the working electrode and was investigated by spectroscopic method. Mechanistic pathways of the oxidation have been proposed.

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