Some Electrochemical Characteristics of Boron- and Phosphorus-Doped Glassy Carbon Electrodes

2003 ◽  
Vol 15 (10) ◽  
pp. 878-884 ◽  
Author(s):  
Biljana F. Abramović ◽  
Luka J. Bjelica ◽  
Ferenc F. Gaál ◽  
Valéria J. Guzsvány ◽  
Ljiljana S. Jovanovic
2007 ◽  
Vol 72 (12) ◽  
pp. 1465-1475 ◽  
Author(s):  
Ferenc Gaál ◽  
Valéria Guzsvány ◽  
Luka Bjelica

The applicability of differently modified glassy carbon (GC) electrodes for direct or indirect determinations of various physiologically active compounds (insecticides and pharmaceuticals) in different formulations and some real samples was investigated. Samples of selected insecticides from the group of neonicotinoids with nitroguanidine (thiamethoxam and imidacloprid), cyanoimine (acetamiprid) and nitromethilene (nitenpyram) fragments, prepared in an appropriate manner, were determined by voltammetry on bare and surface-modified GC electrodes, while in the case of pharmaceuticals such as Trodon and Akineton, the chloride anion titration was followed using bare GC and phosphorus doped (P-GC) electrodes. The P-GC was also used to monitor the chloride content in the photocatalytic degradation of the (4-chloro-2-methylphenoxy)acetic acid herbicide. It was found that apart from the nature of the electrode material, the analyte and supporting electrolyte, as well as the pretreatment of the electrode surface essentially influences the applicability of the employed sensors.


2015 ◽  
Vol 37 ◽  
pp. 85-91
Author(s):  
Yan Min Wang ◽  
Xiu Hong Hao ◽  
Hong Liu

Glassy carbon electrodes (GCEs) were modified by TiO2 and Ag/TiO2 heterostructured nanobelts, respectively. The corresponding electrodes were marked as TiO2/GCE and Ag/TiO2/GCE, respectively. The electrochemical properties of Ag/TiO2/GCE had good and stable electrochemical characteristics in phosphate buffer solution (PBS), and it can be applied to the trace detection of L-cysteine. When the concentration of L-cysteine is in 10-7 order of magnitude, it is more sensitive.


2021 ◽  
Vol 379 ◽  
pp. 138181
Author(s):  
Shota Ito ◽  
Masatoshi Sugimasa ◽  
Yuichi Toshimitsu ◽  
Akihiro Orita ◽  
Masaki Kitagawa ◽  
...  

2021 ◽  
Author(s):  
Yan Jin ◽  
Tong QI ◽  
Yuqing Ge ◽  
Jin Chen ◽  
Li juan Liang ◽  
...  

In this paper, ultrasensitive electrochemical determination of phosphate in water is achieved by hydrophilic TiO2 modified glassy carbon electrodes for the first time. Differential pulse voltammetry (DPV) method is proposed...


1992 ◽  
Vol 324 (1-2) ◽  
pp. 145-159 ◽  
Author(s):  
Paolo Ugo ◽  
Barbara Ballarin ◽  
Salvatore Daniele ◽  
G.Antonio Mazzocchin

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