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Screen-Printed Carbon Electrode Modified with Poly-L-histidine Applied to Gold(III) Determination
(Soc Brasileira Quimica, 2009-01-01)
O presente trabalho reporta o desenvolvimento de um novo método voltamétrico para análise de íons ouro(III) usando eletrodo de carbono impresso modificado com poli-L-histidina. O procedimento é baseado no acúmulo do complexo ...
Catalytic oxidation of ethanol on gold electrode in alkaline media
(WORLD GOLD COUNCIL, 2008)
This work presents a study of the catalytic oxidation of ethanol on polycrystalline gold electrode in alkaline media. The investigation was carried out by means of chronoamperometry, cyclic voltammetry, and in situ FTIR ...
Ex Situ Scanning Electrochemical Microscopy (SECM) Investigation of Bismuth- and Bismuth/Lead Alloy Film-Modified Gold Electrodes in Alkaline Medium
(WILEY-BLACKWELL, 2011)
Scanning electrochemical microscopy (SECM) in feedback mode was employed to characterise the reactivity and microscopic peculiarities of bismuth and bismuth/lead alloys plated onto gold disk substrates in 0.1 molL(-1) NaOH ...
A molecularly imprinted polymer on reduced graphene oxide-gold nanoparticles modified screen-printed electrode for selective determination of ferulic acid in orange peels
(2021-08-01)
This work reports the development of a molecularly imprinted polymer used for the sensitive and selective electrochemical detection of ferulic acid. The device was prepared by the electropolymerization of molecularly ...
Sensor and biosensor based on Prussian Blue modified gold and platinum screen printed electrodes
(2002-03-01)
Gold (Au) and platinum (Pt) screen-printed electrodes were modified with Prussian Blue (PB) for the development of amperometric sensors selective for hydrogen peroxide detection. The sensors exhibited sensitivities towards ...
Modified Laccase-Gold Nanoparticles-Tetrathiafulvalene-SPCEs Based Biosensor to Determine W(VI) in Water
(2017)
It was developed an amperometric biosensor to determine tungsten in water, based on the inhibition of
laccase enzyme, by tungsten ions using pyrocathecol as a substrate. The enzyme was immobilized with a proper
mixture ...