نتایج جستجو برای: differential pulse voltammetry

تعداد نتایج: 377660  

Journal: :Chemical communications 2016
Mokhtari Wahiba Xue-Qing Feng Yi Zang Tony D James Jia Li Guo-Rong Chen Xiao-Peng He

Here we demonstrate the simple construction and characterization of a pyrenyl glycoside-coated 2D MoS2 material composite capable of selectively capturing proteins and live cells on an electrode, as determined by differential pulse voltammetry.

1996
Guorong Zhang

A differential-pulse polarographic (DPP) method was developed for the determination of brodimoprim (BDP) in Michaelis (MCL) buffer. The peak potential (Ep) occurs at 21.33 V (versus SCE) when the pH of the system is 4.0. The voltammetric behaviour in MCL buffer and the mechanisms of the electrode reaction were studied by, e.g., linear sweep voltammetry, cyclic voltammetry and normal-pulse polar...

Journal: :Acta chimica Slovenica 2014
Cristina-Andreea Amarandei George-Octavian Buica Georgiana Anca Inel Liviu Birzan Eleonora-Mihaela Ungureanu

This work is devoted to the electrochemical characterization of 1,3-diethyl 2-(azulen-1-ylmethylene)propanedioate by cyclic voltammetry and differential pulse voltammetry. The redox processes are established, analyzed and assessed to the particular functional groups at which they take place. The complexation behavior towards lanthanide metal ions (Sm(3+), Eu(3+), Yb(3+), Tb(3+)) was studied by ...

2017

Submit Manuscript | http://medcraveonline.com Abbreviations: aMBs: Allosteric Molecular Beacons; AuNPs: Gold Nanoparticles; CNTs: Carbon Nanotubes; CV: Cyclic Voltammetry; DPV: Differential Pulse Voltammetry; dsDNA: Double Stranded DNA; FRET: Fluorescence Resonance Energy Transfer; G-DNA Genomic DNA; GMO: Genetically Modified Organisms; ITO: Indium Tin Oxide; LOD: Limit of Detection; MB: Molecu...

2006
Jiri Barek Jan Fischer Tomas Navratil Karolina Peckova Bogdan Yosypchuk

The applicability of differential pulse voltammetry (DPV) and adsorptive stripping voltammetry (AdSV) at a non-toxic meniscus-modified silver solid amalgam electrode (m-AgSAE) for the determination of trace amounts of genotoxic substances was demonstrated on the determination of micromolar and submicromolar concentrations of 3-nitrofluoranthene using methanol 0.01 mol L NaOH (9:1) mixture as a ...

Journal: :caspian journal of chemistry 2012
hadi beitollahit hassan karimi-maleh iran sheikhshoaie

this paper describes the development, electrochemical characterization and utilization of novel modified molybdenum (vi) complex-carbon nanotube paste electrode for the electrocatalytic determination of ascorbic acid (aa). the electrochemical profile of the proposed modified electrode was analyzed by cyclic voltammetry (cv) that showed a shift of the oxidation peak potential of aa about 235 mv ...

Journal: :journal of nanostructures 2012
m. mazloum-ardakani h. kholghi m. a. sheikh-mohseni a. benvidi h. naeimi

in this paper, a nanostructured modified electrode was fabricated by incorporating of 2,2′-[1,9-nonanediylbis(nitriloethylidyne)]-bis-hydroquinone (nnh) as a newly synthesized modifier and tio2 nanoparticles to the carbon paste (mtcpe) and then was used for the electroanalysis of epinephrine (ep). the electrochemical studies were carried out by using cyclic voltammetry, chronoamperometry and di...

2011
Yu Bao Jixia Song Yan Mao Dongxue Han Fan Yang Li Niu Ari Ivaska

Graphene oxide-templated polyaniline (GO-PAN) microsheets were prepared via oxidation polymerization of aniline with graphene oxide (GO) as template. By applying this approach, irregularly shaped GO-PAN microsheets were obtained which was revealed by scanning electron microscopy (SEM). Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) measurements demonstrated that the resulted G...

Journal: :Bioelectrochemistry 2015
A Dora R Pontinha Caterina M Lombardo Stephen Neidle Ana Maria Oliveira-Brett

The redox mechanism of two trisubstituted triazole-linked phenyl derivatives (CL41 and CL42) and a disubstituted triazole-linked phenyl derivative (CL2r50) were studied using cyclic, differential pulse and square wave voltammetry at a glassy carbon electrode. The CL41, CL42 and CL2r50 oxidation is a complex, pH-dependent irreversible process involving the formation of electroactive products tha...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2005
Yong-Gu Kim Joaquin C Garcia-Martinez Richard M Crooks

The electrochemical properties of Au and Pd monolayer-protected clusters (MPCs), prepared by dendrimer-templating and subsequent extraction, are described. Differential pulse voltammetry was used to estimate the size of the MPCs, and the results were compared to microscopic data and calculated values. Purification of the extracted Au and Pd nanoparticles was not required to obtain well-defined ...

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