scholarly journals Fast and Facile Voltammetric Detection of Acetaminophen at Poly (DL-phenylalanine) Modified Dysprosium-Copper Oxide Nanoparticle/Carbon Composite Paste Electrode

2021 ◽  
Vol 15 (1) ◽  
pp. 31-40
Author(s):  
Shankar A. Itagi ◽  
Jamballi G. G. Manjunatha ◽  
Madikeri M. Charithra ◽  
Puttaswamappa Mallu ◽  
Shadakshari Sandeep ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Electrochemical Impedance ◽  
Supporting Electrolyte ◽  
Carbon Composite ◽  
Sweep Rate ◽  
Carbon Paste ◽  
Voltammetric Detection ◽  
Modified Sensor ◽  
The Impact ◽  
Paste Electrode

Introduction: The voltammetric sensing of Acetaminophen (AN) using modified Dysprosium Copper Oxide (DyCuO) Nanoparticles (NP) mixed Carbon Paste Electrode (MCPE) was successfully developed. Methods: The modification of bare NPMCPE was achieved by the polymerisation of DL-Phenylalanine (DLPA). The electroanalysis of the AN was achieved by utilizing the Cyclic voltammetry (CV) approaches. The crystallographic nature of the nanoparticle was studied via X-ray Powder Diffraction (XRD) technique. The surface morphology and electrochemical feature of the prepared electrode were evaluated by Field Emission Scanning Electron Microscopy (FE-SEM) and Electrochemical Impedance Spectroscopy (EIS) techniques. Results: The modified sensor exhibited an excellent electrocatalytic activity towards the electroanalysis of the AN. Several aspects, such as the number of polymerisation cycles, variation of pH, and the impact of scan rate were investigated in 0.2 M supporting electrolyte (pH 7) at a sweep rate of 0.1 Vs-1. The suggested sensor shows a very low detection limit (11.95×10-8 M) with a linear range of 2.0 to 50.0 µM, which exhibits excellent sensitivity. Conclusion: The stable and reusable sensor was applied for the estimation of AN in the tablet sample. Thus, P(DLPA)MNPMCPE was utilized as the most capable sensor for the voltammetric detection of AN.

scholarly journals A new electrochemical sensor based on carbon paste electrode/Ru(III) complex for determination of nitrite: Electrochemical impedance and cyclic voltammetry measurements

Measurement ◽  
2016 ◽  
Vol 92 ◽  
pp. 524-533 ◽  
Author(s):  
Achour Terbouche ◽  
Siham Lameche ◽  
Chafia Ait-Ramdane-Terbouche ◽  
Djamila Guerniche ◽  
Djahida Lerari ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Electrochemical Sensor ◽  
Carbon Paste Electrode ◽  
Electrochemical Impedance ◽  
Carbon Paste ◽  
Paste Electrode

Clay modified carbon paste electrode for the voltammetric detection of dopamine in presence of ascorbic acid

2012 ◽  
Vol 172 ◽  
pp. 53-58 ◽  
Author(s):  
Tammanekar V. Sathisha ◽  
Bahaddurghatta E. Kumara Swamy ◽  
Sathish Reddy ◽  
Bananakere N. Chandrashekar ◽  
Bheemappa Eswarappa
Keyword(s):  
Ascorbic Acid ◽  
Carbon Paste Electrode ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Voltammetric Detection ◽  
Paste Electrode

Stripping voltammetric detection of copper ions using carbon paste electrode modified with aza-crown ether capped gold nanoparticles and reduced graphene oxide

RSC Advances ◽  
2016 ◽  
Vol 6 (92) ◽  
pp. 89167-89175 ◽  
Author(s):  
M. Ghanei-Motlagh ◽  
Ch. Karami ◽  
M. A. Taher ◽  
S. J. Hosseini-Nasab
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Crown Ether ◽  
Reduced Graphene Oxide ◽  
Copper Ions ◽  
Carbon Paste ◽  
Reduced Graphene ◽  
Voltammetric Detection ◽  
Paste Electrode ◽  
Kryptofix 21

A novel electrochemical sensor based on reduced graphene oxide (RGO) and kryptofix 21-capped gold nanoparticles (GNPs) has been proposed.

VOLTAMMETRIC DETECTION OF TRACES OF COPPER USING A CARBON PASTE ELECTRODE MODIFIED WITH TETRAPHENYLPORPHYRIN

2002 ◽  
Vol 35 (2) ◽  
pp. 369-381 ◽  
Author(s):  
Yan Zhang ◽  
Xiaoquan Lu ◽  
Kaimei Zhu ◽  
Zhihua Wang ◽  
Jingwan Kang
Keyword(s):  
Carbon Paste Electrode ◽  
Carbon Paste ◽  
Voltammetric Detection ◽  
Paste Electrode

A Facile In-Situ Development of L-Valine Film onto the Surface of Carbon Paste Electrode Towards the Detection of Environmentally Hazardous 4-Amino Phenol

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
T. Venu Gopal ◽  
Tukiakula Madhusudana Reddy ◽  
P. Shaikshavali ◽  
G. Venkataprasad ◽  
P. Gopal
Keyword(s):  
Cyclic Voltammetry ◽  
Carbon Paste Electrode ◽  
Electrochemical Impedance ◽  
Limit Of Detection ◽  
Small Scale ◽  
Carbon Paste ◽  
Relative Standard ◽  
Paste Electrode

Abstract A small scale of environmentally hazardous 4-aminophenol can show significant impact on human health. Hence, in the present work, we have designed L-Valine film (Vf) modified carbon paste electrode (Vf/CPE) for the determination of 4-aminophenol. Herein, a facile in-situ L-Valine film was developed by electrochemical polymerization method onto the surface of bare carbon paste electrode (BCPE) with the help of cyclic voltammetry (CV) technique. A two-folds of electrochemical peak current enhancement was achieved at Vf/CPE in comparison with BCPE towards the determination of 4-aminophenol in optimum pH 7.0 of phosphate buffer solution (PBS). This was achieved due to the large surface area and conductive nature of Vf/CPE, which was concluded through the techniques of cyclic voltammetry and electrochemical impedance spectroscopy (EIS). The effect of pH of buffer and scan rate studies were successfully studied. Morphological changes of BCPE and Vf/CPE was studied with the help of scanning electron microscopy (SEM). The formation of Vf on CPE was also analyzed by Fourier transform infrared (FTIR) spectra. Under the optimized conditions, the limit of detection (LOD) and limit of quantification (LOQ) values of 4-aminophenol were estimated with the aid of chronoamperometry (CA) technique and was found to be 9.8 μM and 32 μM, respectively. Finally the proposed method was found to have satisfactory repeatability, reproducibility and stability results with low relative standard deviation (RSD) values.

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