scholarly journals Poly (threonine) Modified Carbon Composite Electrode as Sensor for Amoxicillin Determination

2022 ◽  
pp. ArticleID:220229
Author(s):  
Nagaraja Sreeharsha ◽  
Keyword(s):  
Composite Electrode ◽  
Carbon Composite ◽  
Carbon Composite Electrode

scholarly journals Square-wave voltammetric determination of rutin in pharmaceutical formulations using a carbon composite electrode modified with copper (II) phosphate immobilized in polyester resin

2012 ◽  
Vol 48 (4) ◽  
pp. 639-649 ◽  
Author(s):  
Kellen Heloizy Garcia Freitas ◽  
Orlando Fatibello-Filho ◽  
Ivanildo Luiz de Mattos
Keyword(s):  
Modified Electrode ◽  
Composite Electrode ◽  
Polyester Resin ◽  
Pharmaceutical Formulations ◽  
Carbon Composite ◽  
X Ray ◽  
Square Wave ◽  
Wave Voltammetry ◽  
Carbon Composite Electrode

A carbon composite electrode modified with copper (II) phosphate immobilized in a polyester resin (Cu3(PO4)2-Poly) for the determination of rutin in pharmaceutical samples by square-wave voltammetry is described herein. The modified electrode allows the determination of rutin at a potential (0.20 V vs. Ag/AgCl (3.0 mol L-1 KCl)) lower than that observed at an unmodified electrode. The peak current was found to be linear to the rutin concentration in the range from 9.9 × 10-8 to 2.5 × 10-6 mol L-1, with a detection limit of 1.2×10-8 mol L-1. The response of the electrode was stable, with no variation in baseline levels within several hours of continuous operation. The surface morphology of the modified electrode was characterized by scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) system. The results obtained are precise and accurate. In addition, these results are in agreement with those obtained by the chromatographic method at a 95% confidence level.

A green strategy for the preparation of a honeycomb-like silicon composite with enhanced lithium storage properties

Nanoscale ◽  
2020 ◽  
Vol 12 (24) ◽  
pp. 12849-12855 ◽  
Author(s):  
Runsheng Gao ◽  
Jie Tang ◽  
Xiaoliang Yu ◽  
Kun Zhang ◽  
Kiyoshi Ozawa ◽  
...  
Keyword(s):  
Composite Electrode ◽  
Carbon Composite ◽  
Lithium Storage ◽  
Silicon Carbon ◽  
Carbon Composite Electrode ◽  
Green Strategy ◽  
Storage Properties

A honeycomb-like silicon–carbon composite electrode was prepared via a green nascent hydrogen method to achieve enhanced lithium storage properties.

A comparison of different types of gold?carbon composite electrode for detection of arsenic(III)

2004 ◽  
Vol 381 (4) ◽  
pp. 979-985 ◽  
Author(s):  
Andrew O. Simm ◽  
Craig E. Banks ◽  
Shelley J. Wilkins ◽  
Nikos G. Karousos ◽  
James Davis ◽  
...  
Keyword(s):  
Composite Electrode ◽  
Carbon Composite ◽  
Different Types ◽  
Carbon Composite Electrode

scholarly journals Voltammetric Methods in Metallothionein Research

2005 ◽  
Vol 3 (1-2) ◽  
pp. 43-53 ◽  
Author(s):  
Ivana Šestáková ◽  
Tomáš Navrátil
Keyword(s):  
Metal Ion ◽  
Composite Electrode ◽  
Differential Pulse ◽  
Carbon Composite ◽  
Ion Transfer ◽  
Adsorbed State ◽  
Carbon Composite Electrode ◽  
Pulse Voltammetry ◽  
Voltammetric Methods

The application of voltammetric methods using different rates of polarisation on HMDE reveal inert or labile behaviour of Cd- or Zn- complexes in the presence of excessive cadmium or zinc ions in solution. This phenomenon was demonstrated first on the simplest phytochelatin – complex of peptide(γ-Glu-Cys)2Glywith cadmium, later on rabbit liver metallothioneins –Cd7MTin the presence of cadmium andCd5Zn2MTin the presence of zinc. Voltammetric methods can distinguish between labile and inert complexes present simultaneously and therefore could elucidate their role in reactions of metal ion transfer.Another method using different rates of polarisation – elimination voltammetry with linear scan – proved that S-tetracoordinated complexes of Cd(II) or Zn(II) in the above-mentioned metallothioneins on HMDE are reduced in the adsorbed state. This implies the possibility of increasing the sensitivity of identification or determination of the above complexes. On carbon composite electrode, similar behaviour of Cd-complexes as on HMDE was observed using differential pulse voltammetry.

A ternary MnO2-deposited RGO/lignin-based porous carbon composite electrode for flexible supercapacitor applications

2019 ◽  
Vol 43 (35) ◽  
pp. 14084-14092 ◽  
Author(s):  
Linlin Cui ◽  
Chen Cheng ◽  
Feng Peng ◽  
Yupeng Yang ◽  
Yue Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Composite Film ◽  
Reduced Graphene Oxide ◽  
Porous Carbon ◽  
Composite Electrode ◽  
Carbon Composite ◽  
Flexible Supercapacitor ◽  
Reduced Graphene ◽  
Carbon Composite Electrode ◽  
Supercapacitor Applications

MnO2 nanoparticles were successfully synthesized on a reduced graphene oxide/lignin-based porous carbon (RGO/PC) composite film by a simple electrodeposition method, and a ternary RGO/PC/MnO2 composite electrode for flexible supercapacitors was prepared.

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