A Novel Capacitance Electrochemical Method for Determination of Trace amounts of t-NMP22 by Adsorptive FFT Continuous Fast Cyclic Voltammetry at Au-Pt Ultramicroelectrode in a Flowing Solution

2019 ◽  
pp. 3168-3179
Author(s):  
Alireza Bonakdar ◽  
Keyword(s):  
Cyclic Voltammetry ◽  
Electrochemical Method ◽  
Fast Cyclic Voltammetry ◽  
Flowing Solution

scholarly journals The qualitative determination of oseltamivir phosphate in Tamiflu® capsule by cyclic voltammetry

2011 ◽  
Vol 65 (1) ◽  
pp. 87-91 ◽  
Author(s):  
Milka Avramov-Ivic ◽  
Slobodan Petrovic ◽  
Dusan Mijin ◽  
Katica Drljevic-Djuric
Keyword(s):  
Cyclic Voltammetry ◽  
Electrochemical Method ◽  
Gold Electrode ◽  
Cyclic Voltammogram ◽  
Carbon Electrode ◽  
Experimental Conditions ◽  
Concentration Dependency ◽  
Oseltamivir Phosphate ◽  
Qualitative Determination

A gold electrode was applied in the voltammetric determination of oseltamivir phosphate standard in 0.05 M NaHCO3. Oseltamivir phosphate as a standard and as a component of Tamiflu? capsule exhibited the identical cyclic voltammogram. The peaks originated from excipients in capsule do not appear under the applied electrochemical conditions. The electrochemical method for the qualitative determination of oseltamivir phosphate in Tamiflu? capsule by cyclic voltammetry was developed. The presence of oseltamivir phosphate as standard and as a content of Tamiflu? capsule in electrolyte as well as their concentrations were simultaneously checked by HPLC. The lack of the current/concentration dependency was established. The not pretreated glassy carbon electrode cannot be used for the determination of oseltamivir phosphate under identical experimental conditions presented for gold electrode.

scholarly journals D2receptor-mediated inhibition of dopamine release in the rat striatumin vitrois modulated by CB1receptors: studies using fast cyclic voltammetry

2009 ◽  
Vol 108 (3) ◽  
pp. 545-551 ◽  
Author(s):  
Carmel O’Neill ◽  
Alex Evers-Donnelly ◽  
David Nicholson ◽  
Kathy M. O’Boyle ◽  
John J. O’Connor
Keyword(s):  
Cyclic Voltammetry ◽  
Dopamine Release ◽  
Fast Cyclic Voltammetry

A Two-step Electrodeposition of Pd-Cu/Cu2O Nanocomposite on FTO Substrate for Non-enzymatic Hydrogen Peroxide Sensor

2021 ◽  
Vol 17 ◽  
Author(s):  
Ke Huan ◽  
Li Tang ◽  
Dongmei Deng ◽  
Huan Wang ◽  
Xiaojing Si ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Cyclic Voltammetry ◽  
Photoelectron Spectroscopy ◽  
Chemical Structure ◽  
Pd Nanoparticles ◽  
Optimal Conditions ◽  
Potential Oscillation ◽  
X Ray Diffraction ◽  
X Ray

Background: Hydrogen peroxide (H2O2) is a common reagent in the production and living, but excessive H2O2 may enhance the danger to the human body. Consequently, it is very important to develop economical, fast and accurate techniques for detecting H2O2. Methods: A simple two-step electrodeposition process was applied to synthesize Pd-Cu/Cu2O nanocomposite for non-enzymatic H2O2 sensor. Cu/Cu2O nanomaterial was firstly electrodeposited on FTO by potential oscillation technique, and then Pd nanoparticles were electrodeposited on Cu/Cu2O nanomaterial by cyclic voltammetry. The chemical structure, component, and morphology of the synthesized Pd-Cu/Cu2O nanocomposite were characterized by X-ray diffraction, scanning electron microscopy and X-ray photoelectron spectroscopy. The electrochemical properties of Pd-Cu/Cu2O nanocomposite were studied by cyclic voltammetry and amperometry. Results: Under optimal conditions, the as-fabricated sensor displayed a broad linear range (5-4000 µM) and low detection limit (1.8 µM) for the determination of H2O2. The proposed sensor showed good selectivity and reproducibility. Meanwhile, the proposed sensor has been successfully applied to detect H2O2 in milk. Conclusion: The Pd-Cu/Cu2O/FTO biosensor exhibits excellent electrochemical activity for H2O2 reduction, which has great potential application in the field of food safety.

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