Enhanced electrochemical sensing of nitroaromatic compounds based on hydroxyl modified carbon submicroparticles

2016 ◽  
Vol 203 ◽  
pp. 301-308 ◽  
Author(s):  
Shangshu Pan ◽  
Linan Wang ◽  
Xi Chen ◽  
Yang Tang ◽  
Yongmei Chen ◽  
...  
Keyword(s):  
Nitroaromatic Compounds ◽  
Electrochemical Sensing

Electrochemical Sensing System for Detection of Tricresyl-phosphate

2011 ◽  
Author(s):  
Xiaoyun Yang ◽  
Ruel Overfelt ◽  
Alice Zitova ◽  
Aleksandr Simonian ◽  
Jeffrey Kirsch ◽  
...  
Keyword(s):  
Electrochemical Sensing ◽  
Tricresyl Phosphate ◽  
Sensing System

Electrochemical sensing of Sudan I using the modified graphite screen-printed electrode

2020 ◽  
pp. 1-14
Author(s):  
Somayeh Tajik ◽  
Hadi Beitollahi ◽  
Fariba Garkani Nejad ◽  
Mohadeseh Safaei ◽  
Peyman Mohammadzadeh Jahani
Keyword(s):  
Electrochemical Sensing ◽  
Screen Printed Electrode ◽  
Sudan I ◽  
Screen Printed

scholarly journals Simultaneous electrochemical sensing of dihydroxy benzene isomers at cost-effective allura red polymeric film modified glassy carbon electrode

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Pattan-Siddappa Ganesh ◽  
Ganesh Shimoga ◽  
Seok-Han Lee ◽  
Sang-Youn Kim ◽  
Eno E. Ebenso
Keyword(s):  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Limit Of Detection ◽  
Tap Water ◽  
Differential Pulse ◽  
Oxidation Potential ◽  
Electrochemical Sensing ◽  
Carbon Electrode ◽  
Buffer Solution ◽  
Allura Red

Abstract Background A simple and simultaneous electrochemical sensing platform was fabricated by electropolymerization of allura red on glassy carbon electrode (GCE) for the interference-free detection of dihydroxy benzene isomers. Methods The modified working electrode was characterized by electrochemical and field emission scanning electron microscopy methods. The modified electrode showed excellent electrocatalytic activity for the electrooxidation of catechol (CC) and hydroquinone (HQ) at physiological pH of 7.4 by cyclic voltammetric (CV) and differential pulse voltammetric (DPV) techniques. Results The effective split in the overlapped oxidation signal of CC and HQ was achieved in a binary mixture with peak to peak separation of 0.102 V and 0.103 V by CV and DPV techniques. The electrode kinetics was found to be adsorption-controlled. The oxidation potential directly depends on the pH of the buffer solution, and it witnessed the transfer of equal number of protons and electrons in the redox phenomenon. Conclusions The limit of detection (LOD) for CC and HQ was calculated to be 0.126 μM and 0.132 μM in the linear range of 0 to 80.0 μM and 0 to 110.0 μM, respectively, by ultra-sensitive DPV technique. The practical applicability of the proposed sensor was evaluated for tap water sample analysis, and good recovery rates were observed. Graphical abstract Electrocatalytic interaction of ALR/GCE with dihydroxy benzene isomers.

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