Results 61 to 70 of about 29,652 (200)

Utilização da múltipla voltametria de onda quadrada na determinação eletroanalítica de compostos orgânicos e inorgânicos Use of the multiple square wave voltammetry in the electroanalytical determination of organic and inorganic compounds

open access: yesQuímica Nova, 2007
This paper reports the development of multiple square wave voltammetry and the possibilities of its use for electroanalytical determinations of organic and inorganic compounds with the improvement of the signal-to-noise ratios and detection limits 2-3 ...
Djenaine De Souza   +4 more
doaj   +1 more source

Electrochemical study in both classical cell and microreactors of flavin adenine dinucleotide as a redox mediator for NADH regeneration [PDF]

open access: yes, 2010
The electrochemical reduction of flavinadeninedinucleotide (FAD) is studied in a classical electrochemical cell as well as in two types of microreactors: the first one is a one-channel reactor and the other one, a multichannel filter-press reactor.
Groenen Serrano, Karine   +4 more
core   +2 more sources

Molecularly Imprinted Sensor based on o-phenylenediamine for Electrochemical Detection of Sulfamethoxazole

open access: yesInternational Journal of Electrochemical Science, 2019
Molecularly imprinted electrochemical sensor for the detection of sulfamethoxazole was prepared by electropolymerization with sulfamethoxazole as template molecule and o-phenylenediamine as functional monomer.
Hongmei Zhang   +4 more
doaj   +1 more source

Experimental and theoretical study of DNA oxidation [PDF]

open access: yes, 2008
The electrochemical oxidation of DNA and bases at a glassy carbon electrode were investigated using cyclic and square-wave voltammetry analysis. The predicted oxidative potentials for DNA and bases using DFT method (B3LYP) are in agreement with the ...
Yuanzhi Song
core   +1 more source

Evidence of an EC' mechanism occurring during the simultaneous assay of ascorbic and uric acids on poly(3,4-ethylenedioxythiophene) modified gold microsensor. [PDF]

open access: yes, 2011
A voltammetric microsensor has been developed for the simultaneous assay of ascorbic (AA) and uric (UA) acids in aq. soln. The electrode surface has been modified by means of electropolymd. conductive poly(3,4-ethylenedioxythiophene) (PEDOT) org.
Evrard, David   +2 more
core   +4 more sources

Nano molar detection of acyclovir, an antiviral drug at nanoclay modified carbon paste electrode

open access: yesSensing and Bio-Sensing Research, 2017
A nano level voltammetric sensing method has been developed for determination of acyclovir (ACV) at nano clay modified carbon paste sensor by employing cyclic voltammetry (CV) and square wave voltammetry (SWV) techniques in pH5.0.
Nagaraj P. Shetti   +3 more
doaj   +1 more source

Simulation of square wave voltammetry of three electrode reactions coupled by two reversible chemical reactions

open access: yesJournal of Electrochemical Science and Engineering, 2017
Three fast and reversible electrode reactions that are connected by two reversible chemical reactions that are permanently in the equilibrium are analysed theoretically for square wave voltammetry.
Milivoj Lovrić
doaj   +1 more source

The Redox Couple of the Cytochrome \u3cem\u3ec\u3c/em\u3e Cyanide Complex: The Contribution of Heme Iron Ligation to the Structural Stability, Chemical Reactivity, and Physiological Behavior of Horse Cytochrome \u3cem\u3ec\u3c/em\u3e [PDF]

open access: yes, 2006
Contrary to most heme proteins, ferrous cytochrome c does not bind ligands such as cyanide and CO. In order to quantify this observation, the redox potential of the ferric/ferrous cytochrome c–cyanide redox couple was determined for the first time by ...
Blizzard, Erica R.   +5 more
core   +1 more source

Electrically Guided DNA Immobilization and Multiplexed DNA Detection with Nanoporous Gold Electrodes. [PDF]

open access: yes, 2018
Molecular diagnostics have significantly advanced the early detection of diseases, where the electrochemical sensing of biomarkers (e.g., DNA, RNA, proteins) using multiple electrode arrays (MEAs) has shown considerable promise.
Daggumati, Pallavi   +3 more
core   +3 more sources

The determination of acetaminophen using a carbon nanotube: graphite-based electrode [PDF]

open access: yes, 2010
The oxidation of acetaminophen was studied at a glassy carbon electrode modified with multi-walled carbon nanotubes and a graphite paste. Cyclic voltammety, differential pulse voltammetry and square wave voltammetry at various pH values, scan rates, and ...
Baghi, M   +6 more
core   +2 more sources

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