A strategy for the determination of dopamine at a bare glassy carbon electrode: p-Phenylenediamine as a nucleophile

2006 ◽  
Vol 8 (9) ◽  
pp. 1514-1520 ◽  
Author(s):  
Nei Jin Ke ◽  
Shao-Sheng Lu ◽  
Shu-Hua Cheng
Keyword(s):  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Bare Glassy Carbon Electrode

Cysteine determination via adsorptive stripping voltammetry using a bare glassy carbon electrode

The Analyst ◽  
2016 ◽  
Vol 141 (19) ◽  
pp. 5563-5570 ◽  
Author(s):  
Madalena C. C. Areias ◽  
Kenichi Shimizu ◽  
Richard G. Compton
Keyword(s):  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Stripping Voltammetry ◽  
Adsorptive Stripping Voltammetry ◽  
Carbon Electrode ◽  
Bare Glassy Carbon Electrode ◽  
Acidic Electrolyte

Determination of cysteine by adsorptive stripping voltammetry at a bare GCE in an acidic electrolyte medium in the presence of copper(ii) ions.

Adsorptive Stripping Voltammetric Determination of Chloramphenicol Residues in Milk Samples Using Reduced Graphene Oxide Sensor

2021 ◽  
Author(s):  
Lucas Faria ◽  
Thalles Lisboa ◽  
Guilherme Alves ◽  
Maria Auxiliadora Costa Matos ◽  
Rodrigo Alejandro Abarza Munoz ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Voltammetric Determination ◽  
Carbon Electrode ◽  
Bare Glassy Carbon Electrode ◽  
Milk Samples ◽  
Reduced Graphene

In this paper, the electrochemical response of chloramphenicol (CHL) was investigated on a bare glassy carbon electrode (GCE) and after modification with reduced graphene oxide (GCE/rGO). Preliminary studies by cyclic...

Simultaneous Determination of Epinephrine and Tyrosine Using a Glassy Carbon Electrode Amplified with ZnO-Pt/CNTs Nanocomposite

2019 ◽  
Vol 15 (2) ◽  
pp. 166-171 ◽  
Author(s):  
Ali Samadzadeh ◽  
Iran Sheikhshoaie ◽  
Hassan Karimi-Maleh
Keyword(s):  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Simultaneous Analysis ◽  
Urine Samples ◽  
Carbon Electrode ◽  
Linear Dynamic ◽  
Biological Compounds ◽  
Blood And Urine Samples ◽  
Human Blood And Urine

Background: Simultaneous analysis of epinephrine and tyrosine as two effective and important biological compounds in human blood and urine samples are very important for the investigation of human health. Objective: In this research, a highly effective voltammetric sensor fabricated for simultaneous analysis of epinephrine and tyrosine. The sensor was fabricated by the modification of glassy carbon electrode with ZnO-Pt/CNTs nanocomposite (ZnO-Pt/CNTs/GCE). The synthesized nanocomposite was characterized by SEM method. The ZnO-Pt/CNTs/GCE showed two separated oxidation signals at potential ~220 mV and 700 mV for epinephrine and tyrosine, respectively. Also, we detected linear dynamic ranges 0.5-250.0 µM and 1.0-220 µM with a limit of detections 0.1 µM and 0.5 µM for the determination of epinephrine and tyrosine, respectively. The ZnO-Pt/CNTs/GCE was used for the determination of epinephrine and tyrosine in blood serum and human urine samples.

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