Voltammetric Behavior of Mediator-Modified Electrode by Electrochemical Polymerization of Nitroxyl Radical Precursor Containing Pyrrole Side Chain

Heterocycles ◽  
2010 ◽  
Vol 81 (12) ◽  
pp. 2771 ◽  
Author(s):  
Yoshitomo Kashiwagi ◽  
Tetsuya Ono ◽  
Makiko Tsunoda ◽  
Shigehiro Takahashi ◽  
Toshio Obata ◽  
...  
Keyword(s):  
Modified Electrode ◽  
Nitroxyl Radical ◽  
Electrochemical Polymerization ◽  
Side Chain ◽  
Voltammetric Behavior

scholarly journals Carbon ceramic electrode incorporated with zeolite ZSM-5 for determination of Piroxicam

2010 ◽  
Vol 8 (1) ◽  
pp. 155-162 ◽  
Author(s):  
Karim Asadpour-Zeynali ◽  
Mir Majidi ◽  
Mitra Zarifi
Keyword(s):  
Modified Electrode ◽  
Pharmaceutical Formulations ◽  
Differential Pulse ◽  
Solution Ph ◽  
Carbon Ceramic Electrode ◽  
Experimental Parameters ◽  
Voltammetric Behavior ◽  
Carbon Ceramic ◽  
Optimized Conditions

AbstractA new chemically modified electrode is constructed based on carbon ceramic electrode incorporated with zeolite ZSM-5. Voltammetric behavior of piroxicam at the carbon ceramic zeolite modified electrode (CCZME) was investigated. The modified electrode exhibited catalytic activity toward the electrooxidation of piroxicam. Experimental parameters such as solution pH, scan rate, concentration of piroxicam and zeolite amount were studied. It has been shown that using the CCZME, piroxicam can be determined by differential pulse voltammetry (DPV) and hydrodynamic amperometry (HA). Under the optimized conditions the calibration plots are linear in the concentration ranges of 0.20–25.00 and 0.20–50.10 μM with limit of detections of 0.65 and 0.29 μM for DPV and HA, respectively. The modified electrode with DPV and HA methods was successfully applied for analysis of piroxicam in pharmaceutical formulations. The results were favorably compared to those obtained by the spiked method. The results of the analysis suggest that the proposed method has promise for the routine determination of piroxicam in the products examined.

Study of the Voltammetric Behavior of Chloramphenicol and Its Determination At a Ni/C Modified Electrode

1998 ◽  
Vol 31 (2) ◽  
pp. 237-249 ◽  
Author(s):  
Zhao Min ◽  
Hu Jingbo ◽  
Lai Yongchun ◽  
Li Qilong ◽  
Wu Zhongda
Keyword(s):  
Modified Electrode ◽  
Voltammetric Behavior

Voltammetric behavior of HeLa cells on a carbon nanotube/ionic liquid modified electrode for cytotoxicity evaluation of chlorophenols

2016 ◽  
Vol 8 (1) ◽  
pp. 171-176 ◽  
Author(s):  
Xiaolin Zhu ◽  
Hongwei Qin ◽  
Guanlan Wu ◽  
Jinlian Li ◽  
Xing Yuan ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Carbon Nanotube ◽  
Modified Electrode ◽  
Cervical Carcinoma ◽  
Hela Cells ◽  
Electrochemical Method ◽  
Purine Metabolism ◽  
Human Cervical Carcinoma ◽  
Voltammetric Behavior

Two voltammetric signals based on the purine metabolism of human cervical carcinoma (HeLa) cells on a sensitive p-MWCNT/IL/GCE was discovered. The cytotoxicity of three chlorophenols was tested with this double-signal electrochemical method.

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