Voltammetric Detection of Cd2+, Pb2+, and Hg2+, Using Bio-Matter Mediated Nanocomposite Modified Screen-Printed Carbon Electrode

2021 ◽  
Vol MA2021-02 (54) ◽  
pp. 1949-1949
Author(s):  
Enyioma Okpara
Keyword(s):  
Carbon Electrode ◽  
Screen Printed Carbon Electrode ◽  
Voltammetric Detection ◽  
Screen Printed

scholarly journals Fabrication of Recycle Screen Printed Carbon Electrode and Its Application for Voltammetric Detection of Gallic Acid

2019 ◽  
Vol 22 (5) ◽  
pp. 164-172
Author(s):  
Wulan Tri Wahyuni ◽  
Rany Zalvianita ◽  
Rudi Heryanto
Keyword(s):  
Gallic Acid ◽  
Phosphate Buffer ◽  
Carbon Electrode ◽  
Good Precision ◽  
Working Electrode ◽  
Screen Printed Carbon Electrode ◽  
Voltammetric Detection ◽  
Electrochemically Active ◽  
Tea Extract ◽  
Screen Printed

Gallic acid is phenolic compound found in tea and act as antiradical agent. This compound is electrochemically active and could be detected using voltammetric technique. This study aims to obtain recycle screen printed carbon electrode (rSPCE) and applied it for voltammetric detection of gallic acid. rSPCE was prepared by modification of used SPCE working electrode using a mixture of graphite:polystyrene at ratio of 95:5, 90:10, and 85:15 (w/w). Graphite:polystyrene was suspended in chloroform and deposited on SPCE by drop casting method. Phosphate buffer 0.1 M at pH of 2.5, 3.5, and 7 were used as electrolyte solution in voltammetric detection of gallic acid. The optimum condition of gallic acid detection was obtained when phosphate buffer 0,1 M at pH of 2.5 and rSPCE in composition of graphite:polystyrene (95:5) used as electrolyte and working electrode, respectively. Gallic acid has 2 oxidation peaks at potential of 0.26 V and 0.63 V vs Ag/AgCl, respectively. At concentration of 1 – 5 mM, gallic acid and oxidation currents provide linear regression with the coefficient determination of 0.9947 and 0.9864, consecutively for peak number 1 and 2. Measurement of gallic acid at rSPCE 95:5 shows good precision with %RSD < 5%. rSPCE was successfully applied for voltammetric detection of gallic acid in standard solution with accuracy > 96%, however further development is needed before its application for gallic acid measurement in real sample such as tea extract.

Dipyridine-Containing Macrocyclic Polyamine - Nafion-Modified Screen-Printed Carbon Electrode for Voltammetric Detection of Lead

2012 ◽  
Vol 24 (3) ◽  
pp. 591-599 ◽  
Author(s):  
Francesca Bettazzi ◽  
Claudia Giorgi ◽  
Serena Laschi ◽  
Ilaria Palchetti
Keyword(s):  
Carbon Electrode ◽  
Macrocyclic Polyamine ◽  
Screen Printed Carbon Electrode ◽  
Voltammetric Detection ◽  
Screen Printed

Biological Multilayer Films Assembled by Redox Polymer and HRP on Screen-Printed Carbon Electrode

2012 ◽  
Vol 571 ◽  
pp. 56-59
Author(s):  
Yu Fang Sha ◽  
Mei Zhao ◽  
Ming Quan Yang ◽  
Hai Xin Bai ◽  
Man Zhao
Keyword(s):  
Horseradish Peroxidase ◽  
Electrostatic Interaction ◽  
Electrode Surface ◽  
Multilayer Films ◽  
Carbon Electrode ◽  
Layer By Layer ◽  
Redox Polymer ◽  
Screen Printed Carbon Electrode ◽  
Positively Charged ◽  
Screen Printed

Biological multilayer films of redox polymer and horseradish peroxidase (HRP) were successfully assembled on a screen-printed carbon electrode using layer-by-layer (LBL) assembled method based on the electrostatic interaction. The screen-printed carbon electrode surface was modified by the positively charged redox polymer, and the negatively charged HRP by LBL method.

Screen-printed carbon electrode for the electrochemical detection of conjugated bilirubin

2021 ◽  
pp. 130574
Author(s):  
P.E. Resmi ◽  
Jeethu Raveendran ◽  
P.V. Suneesh ◽  
T. Ramanchandran ◽  
Bipin G Nair ◽  
...  
Keyword(s):  
Electrochemical Detection ◽  
Carbon Electrode ◽  
Screen Printed Carbon Electrode ◽  
Conjugated Bilirubin ◽  
Screen Printed

scholarly journals A graphene screen-printed carbon electrode for real-time measurements of unoccupied active sites in a cellulase

2014 ◽  
Vol 447 ◽  
pp. 162-168 ◽  
Author(s):  
Nicolaj Cruys-Bagger ◽  
Hirosuke Tatsumi ◽  
Kim Borch ◽  
Peter Westh
Keyword(s):  
Real Time ◽  
Active Sites ◽  
Carbon Electrode ◽  
Screen Printed Carbon Electrode ◽  
Screen Printed

Amperometric fructose sensor based on ferrocyanide modified screen-printed carbon electrode

Talanta ◽  
2012 ◽  
Vol 88 ◽  
pp. 432-438 ◽  
Author(s):  
Julien Biscay ◽  
Estefanía Costa Rama ◽  
María Begoña González García ◽  
A. Julio Reviejo ◽  
José Manuel Pingarrón Carrazón ◽  
...  
Keyword(s):  
Carbon Electrode ◽  
Screen Printed Carbon Electrode ◽  
Screen Printed
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