Electrochemical behaviour of pyridoxine hydrochloride (vitamin B6) at carbon paste electrode modified with crown ethers

2007 ◽  
Vol 12 (9) ◽  
pp. 1067-1075 ◽  
Author(s):  
Purvi B. Desai ◽  
Rahul M. Kotkar ◽  
Ashwini K. Srivastava
Keyword(s):  
Crown Ethers ◽  
Carbon Paste Electrode ◽  
Vitamin B6 ◽  
Electrochemical Behaviour ◽  
Pyridoxine Hydrochloride ◽  
Carbon Paste ◽  
Paste Electrode

scholarly journals Developing an electrochemical sensor based on a carbon paste electrode modified with ZnO nanoparticles synthesized by microwave for determination of chlorpheniramine maleate

2021 ◽  
Vol 4 (01) ◽  
pp. 16-25
Author(s):  
Hamideh Asadollahzadeh
Keyword(s):  
Carbon Paste Electrode ◽  
Zno Nanoparticles ◽  
Electrochemical Behaviour ◽  
Differential Pulse ◽  
Oxidation Potential ◽  
Carbon Paste ◽  
Chlorpheniramine Maleate ◽  
Peak Current ◽  
Paste Electrode

Zinc oxide (ZnO) nanoparticles with an average size of 60 nm have been successfully prepared by microwave irradiation. Carbon paste electrode (CPE) was modified with ZnO nanoparticles and used for the electrochemical oxidation of chlorpheniramine maleate (CPM). Cyclic voltammetry (CV) study of the modified electrode indicated that the oxidation potential shifted towards a lower potential by approximately 106 mV and the peak current was enhanced by 2 fold in comparison to the bare CPE (ZnO/CPE-CV). The electrochemical behaviour was further described by characterization studies of scan rate, pH and concentration of CPM. Under the optimal conditions, the peak current was proportional to CPM concentration in the range of 8.0 ×10-7 to 1.0 × 10-3 mol L-1 with a detection limit of 5.0 × 10-7 mol L-1 by differential pulse voltammetry (DPV). The peak current of CPM is linear in the concentration range of 0.8 - 1000 µM (R2=0.998). The ZnO/CPE has good reproducibility and high stability for the determination of CPM using this electrode. The proposed method was successfully applied to the determination of CPM in pharmaceutical samples. In addition, the important analytical parameters were compared with other methods which show that ZnO/CPE-CV procedure is comparable to recently reported methods.

Voltammetric determination of pyridoxine (Vitamin B6) at a carbon paste electrode modified with vanadyl(IV)–Salen complex

2004 ◽  
Vol 508 (1) ◽  
pp. 79-85 ◽  
Author(s):  
Marcos F.S Teixeira ◽  
Glimaldo Marino ◽  
Edward R Dockal ◽  
Éder T.G Cavalheiro
Keyword(s):  
Carbon Paste Electrode ◽  
Vitamin B6 ◽  
Voltammetric Determination ◽  
Carbon Paste ◽  
Salen Complex ◽  
Paste Electrode

scholarly journals Electrochemical Behaviour and Determination of Baicalin on Nano-Al2O3 Modified Carbon Paste Electrode

2015 ◽  
Vol 27 (7) ◽  
pp. 2396-2400
Author(s):  
Gao-Feng Shi ◽  
Hai-Xiao Liu ◽  
Guo-Ying Wang ◽  
Jin-Mei Su ◽  
Jian Miao ◽  
...  
Keyword(s):  
Carbon Paste Electrode ◽  
Electrochemical Behaviour ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Paste Electrode
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