Results 221 to 230 of about 191,668 (311)

A carbon paste electrode improved with poly(ethylene glycol) for tannic acid surveillance in beer samples.

Food Chemistry, 2020
Tannic acid is often used as additive in beers and is an important parameter to be evaluated in quality control of beverages. Thus, this paper describes the improvement of a carbon paste electrode through its modification with poly(ethylene glycol) for ...
J. V. Piovesan, E. Santana, A. Spinelli
semanticscholar   +1 more source

Electrochemical sensing of adrenaline using surface modified carbon nanotube paste electrode

, 2021
A new interesting insight into the construction of a voltammetric sensor for the detection of Adrenaline (AD) has been presented. Poly oxalic acid modified carbon nanotube paste electrode (POXMCNTPE) exhibited the boosted detecting ability towards the AD
M. M. Charithra, J. G. Manjunatha
semanticscholar   +1 more source

A new electrochemical DNA biosensor based on modified carbon paste electrode using graphene quantum dots and ionic liquid for determination of topotecan

Microchemical journal (Print), 2019
To study topotecan–DNA interaction and topotecan determination with a modified carbon paste electrode (CPE), a new electrochemical biosensor is introduced.
Hadi Mahmoudi-Moghaddam, S. Tajik, H. Beitollahi   +2 more
semanticscholar   +1 more source

Activated carbon paste electrodes for biosensors

Analytical Chemistry, 1994
A reagentless amperometric glucose biosensor was constructed using glucose oxidase and hydroquinone (H2Q) coimmobilized in carbon paste. The sensor response was studied by amperometry and cyclic voltammetry in quiescent solutions, as well as in a flow injection apparatus.
N, Motta, A R, Guadalupe
openaire   +2 more sources

Metalloporphyrin containing carbon paste electrodes

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1985
Abstract Iron and manganese tetraphenylporphyrin chlorides can be dissolved in 1-nonanol and mixed into a carbon paste electrode which in aqueous buffer exhibits the classic metal(III/II) cyclic voltammetry. The voltammetric formal potential shifts negatively by 60 mV/pH unit, and enhanced, electrocatalytic currents are observed in the presence of ...
Esther S. Takeuchi, Royce W. Murray
openaire   +1 more source

Metal-dispersed carbon paste electrodes

Analytical Chemistry, 1992
The preparation of metal-dispersed carbon paste electrodes, based on mixing an organic binder with metalized graphite, is described. Such electrodes combine the efficient electrocatalytic activity of metal microparticles with the attractive properties of carbon paste matrices.
Joseph. Wang, Najih. Naser, Lucio. Angnes, Hui. Wu, Liang. Chen   +4 more
openaire   +1 more source

NiO nanoparticles modified carbon paste electrode as a novel sulfasalazine sensor.

Analytica Chimica Acta, 2018
The sol-gel synthesized NiO nanoparticles were characterized and used for the modification of a carbon paste electrode (CPE) in electrocatalytic voltammetric determination of sulfasalazine. Calcination temperature of NiO had an important role on the peak
Zahra Amani-Beni, Alireza Nezamzadeh‐Ejhieh   +1 more
semanticscholar   +1 more source

A comprehensive study on the kinetic aspects and experimental design for the voltammetric response of a Sn(IV)-clinoptilolite carbon paste electrode towards Hg(II)

Journal of Electroanalytical Chemistry, 2018
The Sn(IV) ion exchanged clinoptilolite nanoparticles (Sn(IV)-CNP) were used as a modifier for the modification of carbon paste electrode (CPE). When the modified electrode was immersed in HCl supporting electrolyte, Sn(IV) cations can locate at the Sn ...
T. Tamiji, Alireza Nezamzadeh‐Ejhieh
semanticscholar   +1 more source

Cu(II) Metal-Organic Framework Encapsulated in Carbon Paste Electrode for High-Performance Non-Enzymatic Glucose Sensing

, 2020
A novel electrochemical non-enzymatic sensing system was fabricated based on carbon paste electrode (CPE) encapsulating copper metal-organic frameworks (Cu-MOF/CPE) for determination of glucose by chronoamperometry in alkaline media.
Lan Wu, Zhiwei Lu, Ying Ma, Junjun Zhang, Guangquan Mo, Haijun Du, Jianshan Ye   +6 more
semanticscholar   +1 more source

Efficient detection of hazardous catechol and hydroquinone with MOF-rGO modified carbon paste electrode.

Journal of Hazardous Materials, 2018
Reduced graphite oxide (rGO) was incorporated into a metal organic framework (MOF) MIL-101(Cr) for the modification of carbon paste electrode. Taking advantages of the large surface area of MOF and the electrical conductivity of rGO, the resulted ...
Hailong Wang, Quanqin Hu, Y. Meng, Zier Jin, Zilin Fang, Qinrui Fu, Wenhua Gao, Liang Xu, Yibing Song, Fushen Lu   +9 more
semanticscholar   +1 more source