Search Results - "Maurício Hilgemann"
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A multivariate approach at the thermodynamic properties of rare earth elements
Published in Thermochimica acta (01-08-2019)“…•Multivariate analysis classified rare earth elements and counter ions in groups.•The counter ion effects based on different thermodynamic parameters are…”
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Poly(methylene blue)-modified electrode for indirect electrochemical sensing of OH radicals and radical scavengers
Published in Anais da Academia Brasileira de Ciências (01-07-2017)“…A new modified electrode for indirect sensing of OH· and radical scavengers was described. The electrochemical polymerization of methylene blue in aqueous…”
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Electrochemical approaches employed for sensing the antioxidant capacity exhibited by vegetal extracts: a review
Published in Combinatorial chemistry & high throughput screening (01-02-2013)“…Vegetal extracts are among the most important source of polyphenols in the diet, highlighting the importance of their characterization and determination. For…”
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ELECTROCHEMICAL BEHAVIOR AND EVALUATION OF DIFFUSION IN VITRO OF ACTIVE α-TOCOPHEROL ASSOCIATED WITH IONTOPHORESIS
Published in Química nova (2014)Get full text
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Indirect Electrochemical Sensing of Radicals and Radical Scavengers in Biological Matrices
Published in Angewandte Chemie (International ed.) (01-01-2007)“…Breaking cover: Hydroxyl radicals OH. destroy the self‐assembled monolayer (SAM) of hexanethiol on gold and mercury electrodes and thus allow the…”
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Electrochemical Assay to Quantify the Hydroxyl Radical Scavenging Activity of Medicinal Plant Extracts
Published in Electroanalysis (New York, N.Y.) (01-02-2010)“…A new electrochemical assay has been developed which is based on quantifying the attack of OH. radicals on a self‐assembled thiol monolayer on electrodes in…”
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Substrate-free Determination of the Radical Scavenging Activity of Phenolic Compounds by Photochemical Generation of Hydroxyl Radicals and HPLC-UV Detection
Published in Separation science and technology (01-03-2013)“…This paper describes the study of the radical scavenging activity of the natural antioxidants rutin, quercetin, caffeic acid, ferulic acid, and resveratrol by…”
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EFEITO DO ULTRASSOM TERAPÊUTICO NA LIBERAÇÃO, PERMEAÇÃO E RETENÇÃO DE ÁCIDO KÓJICO EM SISTEMA DE DIFUSÃO VERTICAL
Published in Acta Biomedica Brasiliensia (10-04-2018)“…A administração transdérmica de ativos terapêuticos oferece muitas vantagens sobre outras vias de administração, dentre as quais destacam-se o potencial de…”
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Simultaneous Determination of Cadmium, Copper, Lead and Zinc in Amino Acid Parenteral Nutrition Solutions by Anodic Stripping Voltammetry and Sample Digestion by UV Irradiation
Published in Analytical letters (01-04-2006)“…Irradiation with ultraviolet (UV) energy was investigated to assay cadmium, copper, lead, and zinc by anodic stripping voltammetry (ASV) in amino acid…”
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Fast assessment of diene values in pyrolysis gasoline by UV-visible spectroscopy and multivariate calibration
Published in Journal of petroleum science & engineering (01-08-2011)“…Conjugated dienes in pyrolysis gasoline samples were assayed by spectrophotometry. The calibrations were carried out by partial least squares regression using…”
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Remoção de fósforo e nitrogênio em efluente de indústria de laticínios por eletrocoagulação
Published in Scientia plena (27-09-2016)“…O tratamento de efluentes é uma problemática que vem sendo estudada nos últimos anos devido ao grande potencial degenerativo ao ambiente. Na indústria de…”
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Chemometric approach to assess the diene value in hydrogenated pyrolysis gasoline by voltammetry
Published in Chemometrics and intelligent laboratory systems (15-11-2007)“…Conjugated dienes can affect the distillation and the quality of petroleum products so that methodologies to assay the diene value (DV) are important. In this…”
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Comportamento eletroquímico e avaliação da difusão in vitro do α-tocoferol associado à iontoforese
Published in Química Nova (01-01-2014)“…Iontophoresis is a method of administering substances through the skin, which uses electrical current or potential to promote transdermal delivery. We focused…”
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Eletropolimerização de azul de metileno sobre carbono vítreo e estabilidade do filme de poli(azul de metileno)
Published in Scientia plena (27-09-2016)“…Os polímeros condutores (CP) têm permeado muitos campos de pesquisa eletroquímica. O trabalho tem como objetivo estudar diferentes condições para a…”
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Voltametria de micropartículas imobilizadas: fundamentos e aplicações analíticas Voltammetry of immobilized microparticles: fundamentals and analytical applications
Published in Química nova (01-01-2010)“…The theoretical aspects of Voltammetry of Immobilized Microparticles (VIM) were discussed. The immobilization of microparticles on electrode surface, the…”
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Voltametria de micropartículas imobilizadas: fundamentos e aplicações analíticas
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EFEITO DO ULTRASSOM TERAPEUTICO NA LIBERACAO, PERMEACAO E RETENCAO DE ACIDO KOJICO EM SISTEMA DE DIFUSAO VERTICAL
Published in Acta Biomedica Brasiliensia (01-04-2018)“…Effect of ultrasound therapeutic in the release, permeation and retention of Acid Kojic in broadcasting system vertical. Transdermal therapeutic active offers…”
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Der indirekte elektrochemische Nachweis von Radikalen und Radikalfängern in biologischen Matrices
Published in Angewandte Chemie (22-10-2007)“…Verräterische Spuren hinterlassen Hydroxylradikale OH. in selbstorganisierten Monoschichten (SAMs) von Hexanthiol auf Gold‐ und Quecksilberelektroden. Dadurch…”
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AVALIAÇÃO DE FRAGMENTOS DE LENHOS CARBONIZADOS DE ARAUCARIACEAE POR MEIO DE TERMOGRAVIMETRIA E INFRAVERMELHO ASSOCIADAS À ANÁLISE MULTIVARIADA
Published in Química Nova“…The aim of the study is to evaluate the physical and chemical changes that occur on wood fragments submitted to different temperatures, verifying their…”
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