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A nafion film cover to enhance the analytical performance of the CuO/Cu electrochemical sensor for determination of chemical oxygen demand
ArticleAbstract: We modified and evaluated the performance of a CuO/Cu electrochemical electrode for chemical oxygenPalabras claves:chemical oxygen demand, Copper oxide electrode, detection, Nafion filmAutores:Alvarado J., Byron Ordóñez Ríos, Lenys Fernández, Llorca J., Patricio Javier Espinoza-Montero, Tanya CarchiFuentes:scopusDevelopment and evaluation of a glassy carbon electrode modified with silver and mercury nanoparticles for quantification of cysteine rich peptides
ArticleAbstract: A glassy carbon electrode,covered with a Nafion film, on which nano-structured bimetallic particlesPalabras claves:Ag-Hg nanoparticles, Anodic stripping voltammetry, Brdička reaction, Cysteine-Glutathione electrochemical detection, Modified electrode, NafionAutores:Alvarado J., Carrera P., Lenys Fernández, Luis Cumbal, Professor, Luis H. Cumbal, Patricio Javier Espinoza-Montero, Romero Hugo, Valera D.Fuentes:googlescopusDevelopment and evaluation of copper electrodes, modified with bimetallic nanoparticles, to be used as sensors of cysteine-rich peptides synthesized by tobacco cells exposed to cytotoxic levels of cadmium
ArticleAbstract: We report on two new electrochemical sensors which, coupled to differential pulse voltammetry, constPalabras claves:Bimetallic deposits, Brdička reaction, Cysteine-rich peptides, Electrochemical detection, Heavy metal pollutionAutores:Alvarado J., Carlos Velasco-Medina, Carrera P., Lenys Fernández, Marjorie Montero-Jiménez, Mónica B. Jadán, Patricio Javier Espinoza-MonteroFuentes:scopusImprovements in the electrochemical generation of arsine at gold electrodes as a sample introduction strategy for arsenic determination in well-water samples by atomic absorption spectrometry
ArticleAbstract: The development and evaluation of a cathode consisting of a gold electrode covered by a polyanilinePalabras claves:arsenic, electrochemical hydride generation and atomic absorption determination, gold-polyaniline electrodeAutores:Alvarado J., Antonio Díaz-Barrios, Carrera P., Lenys Fernández, Pablo Pozo, Patricio Javier Espinoza-Montero, Zambrano H.B.Fuentes:scopusElectrochemical determination of arsenic in natural waters using carbon fiber ultra-microelectrodes modified with gold nanoparticles
ArticleAbstract: We have developed an anodic stripping voltammetry method that employs carbon fiber ultra-microelectrPalabras claves:Anodic stripping voltammetry, Arsenic electrochemical detection, Carbon fiber ultra-microelectrodes, Gold nanoparticlesAutores:Alvarado J., Carrera P., Hugo Romero Bonilla, Lenys Fernández, Patricio Javier Espinoza-MonteroFuentes:googlescopusElectrochemical generation of antimony volatile species, stibine, using gold and silver mercury amalgamated cathodes and determination of Sb by flame atomic absorption spectrometry
ArticleAbstract: The electrochemical generation of antimony volatile species (stibine) using Au and Ag mercury amalgaPalabras claves:Atomic absorption spectrometry, Electrochemical antimony hydride generation, Marine sediment samples, StibineAutores:Alvarado J., Carrera P., Hugo Romero Bonilla, Jessenia Ordoñes, Lenys FernándezFuentes:scopusElectrochemical generation of arsenic volatile species using a gold/mercury amalgam cathode. Determination of arsenic by atomic absorption spectrometry
ArticleAbstract: The electrochemical generation of arsenic volatile species (arsine) using an Au/Hg amalgam cathode iPalabras claves:Arsine, Atomic absorption spectrometry, Electrochemical arsenic hydride generation, Tap water samplesAutores:Alvarado J., Andrea Caiminagua, Byron Ordóñez Ríos, Hugo Romero Bonilla, Lenys FernándezFuentes:scopusElectrochemical generation of volatile Pb species on Au/Hg cathodes as a sample introduction technique in the determination of Pb by atomic absorption spectroscopy
ArticleAbstract: We have used amalgamated Au cathodes for electrochemical generation of volatile lead hydride, PbH4.Palabras claves:Autores:Alvarado J., Byron Ordóñez Ríos, Ghislaine Morales, Hugo Romero Bonilla, Lenys FernándezFuentes:scopusElectrochemical generation of volatile lead species using a cadmium cathode: Comparison with graphite, glassy carbon and platinum cathodes
Conference ObjectAbstract: Working electrodes made out of pyrolytic graphite, glassy carbon, platinum and cadmium were comparedPalabras claves:Atomic absorption spectrometry, Electrochemical hydride generation, leadAutores:Alvarado J., Dominguez J.R., Lenys Fernández, Saénz M.Fuentes:googlescopus