Simple, Rapid and Sensitive Electrochemical Method for the Determination of the Triketone Herbicide Sulcotrione in River Water Using a Glassy Carbon Electrode

2015 ◽  
Vol 27 (7) ◽  
pp. 1587-1593 ◽  
Author(s):  
Dalibor M. Stanković ◽  
Eda Mehmeti ◽  
Lubomir Svorc ◽  
Kurt Kalcher
Keyword(s):  
River Water ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Electrochemical Method ◽  
Carbon Electrode

Determination of isoniazid content via cysteic acid/graphene modified glassy carbon electrode

2015 ◽  
Vol 7 (2) ◽  
pp. 793-798 ◽  
Author(s):  
Xiaojing Si ◽  
Lin Jiang ◽  
Xinyue Wang ◽  
Yaping Ding ◽  
Liqiang Luo
Keyword(s):  
Detection Limit ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Electrochemical Method ◽  
Cysteic Acid ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode

The electrodeposited graphene (EGR) and cysteic acid (CA) composite (CA/EGR) was fabricated through an electrochemical method for the modification of glassy carbon electrode (GCE). The obtained detection linearity of isoniazid at the CA/EGR/GCE ranged from 0.1 to 200 μM with the detection limit of 0.03 μM (S/N = 3).

Determination of Cyanuric Acid by Electrochemical Cyclic Voltammetry Method Using CuGeO3 Nanowires as Modified Electrode Materials

2013 ◽  
Vol 4 (3) ◽  
Author(s):  
L. Z. Pei ◽  
Y. K. Xie ◽  
Y. Q. Pei ◽  
Z. Y. Cai ◽  
C. G. Fan
Keyword(s):  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Electrochemical Method ◽  
Electrode Materials ◽  
Cyanuric Acid ◽  
Cyclic Voltammogram ◽  
Carbon Electrode ◽  
Scan Rate ◽  
Cyclic Voltammetry Method

A simple electrochemical method for the determination of cyanuric acid (CA) has been developed based on a CuGeO3 nanowire modified glassy carbon electrode. The dense CuGeO3 nanowire film can be formed on the surface of the glassy carbon electrode. The roles of scan rate, CA concentration, and electrolytes with different pH values on the electrochemical responses of CA have also been analyzed. The intensities of two anodic peaks vary linearly with the increase of the scan rate from 25 to 200 mVs−1. The intensity of the electrochemical CV peak increases with the increase of the acidity of the electrolytes. The two anodic peak currents are linear with the CA concentration in the range of 0.005–2 mM. The linear correlation coefficient is 0.984 and 0.980 for the cyclic voltammogram peaks (cvp) cvp1 and cvp2, respectively. The detection limit is 4.3 μM and 2.1 μM for cvp1 and cvp2, respectively. The proposed electrochemical method is convenient and effective sensing of CA.

Electrochemical behavior of the insecticide pymetrozine at an electrochemically pretreated glassy carbon electrode and its analytical application

2015 ◽  
Vol 7 (21) ◽  
pp. 9100-9107 ◽  
Author(s):  
Donglin Jia ◽  
Jian Gao ◽  
Lu Wang ◽  
Yudong Gao ◽  
Baoxian Ye
Keyword(s):  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Electrochemical Behavior ◽  
Electrochemical Method ◽  
Analytical Application ◽  
Carbon Electrode

A simple and sensitive electrochemical method for the determination of the insecticide pymetrozine was proposed using a simple electrochemically pretreated glassy carbon electrode (EPGCE).

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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