Results 31 to 40 of about 140,762 (162)

Voltammetric behavior of 2-furfuraldehide reduction in ethanol using glassy carbon electrode

Eclética Química, 2018
This study reports the electrochemical behavior of 2-furfuraldehide reduction in ethanol using glassy carbon electrode, aiming to correlate adequate experimental conditions for determination of this 2-furfuraldehide in fuel ethanol.
Adelir Aparecida Saczk, Marcelo Firmino de Oliveira, Leonardo Luiz Okumura, Nelson Ramos Stradiotto   +3 more
doaj   +1 more source

Preparation and characterization of the solid tin(II)-EDTA complex and influence of thermal treatment on the morphology of SnO2 residue

Eclética Química, 2018
The synthesis of tin(II)-EDTA solid complex is described and its characterization carried out through elemental analysis, infrared absorption spectroscopy, X Ray diffractometry and nuclear magnetic resonance of 1H and 13C.
Luciana Simionatto Guinesi, Clóvis Augusto Ribeiro, Marisa Spirandeli Crespi, Ana Maria Veronezi   +3 more
doaj   +1 more source

Emissive Cyanide-Bridged Bimetallic Compounds as Building Blocks for Polymeric Antennae [PDF]

, 2013
A series of cyanide-bridged bimetallic compounds of the general formula [Ru(L)(bpy)(μ-NC)(M)]2−/−/2+ (L = tpy, 2,2'-6',2''-terpyridine, or tpm, tris(1-pyrazolyl)methane, bpy = 2,2'-bipyridine, M = RuII(CN)5, OsIII(CN)5, OsII(CN)5, RuII(py)4(CN), py ...
Alborés, Pablo, Aramburu Troselj, Bruno Martín, Baraldo Victorica, Luis Mario, Cadranel, Alejandro, Kleiman, Valeria, Yamazaki, Shiori   +5 more
core   +1 more source

Determinação voltamétrica do nedocromil de sódio utilizando eletrodo de carbono vítreo

Eclética Química, 2018
Estudos eletroanalíticos foram realizados com o Nedocromil de Sódio empregando as técnicas voltamétricas de varredura linear, pulso diferencial e onda quadrada, em tampão Britton-Robinson (pH 4,0).
T. F. Rosa, A. A. Saczk, M. V. B. Zanoni, N. R. Stradiotto   +3 more
doaj   +1 more source

Pseudo-Stem Banana Fibers: Characterization and Chromium Removal

Orbital: The Electronic Journal of Chemistry, 2013
In this work, pseudo-stems of the banana tree were collected, characterized and used as adsorbent materials for the removal of the chromium ions from aqueous solution.
Helena Becker, Regiane F. Matos, Joseane A. de Souza, Daniel de A. Lima, Francisco Thiago C. de Souza, Elisane Longhinotti   +5 more
doaj   +1 more source

Determination of Cadmium (II) in Aqueous Solutions by In Situ MID-FTIR-PLS Analysis Using a Polymer Inclusion Membrane-Based Sensor: First Considerations

Molecules, 2020
Environmental monitoring is one of the most dynamically developing branches of chemical analysis. In this area, the use of multidimensional techniques and methods is encouraged to allow reliable determinations of metal ions with portable equipment for in-
René González-Albarrán, Josefina de Gyves, Eduardo Rodríguez de San Miguel   +2 more
doaj   +1 more source

Analysis of biomarkers of inflammation and oxidative stress in chagas disease [PDF]

, 2016
Introduction: The pathophysiologic factors that control the formation and perpetuation of heart inflammation in chagasic patients were not yet fully clarified. Chronic inflammatory processes induce oxidative/nitrosative stress and lipid peroxidation.
Beloscar, Juan, Ceruti, María José, D'Arrigo, Mabel, Diviani, Romina, Gerrard, Gabriela, Lioi, Susana, Martí, María Belén   +6 more
core  

Bypassing Oxidative Addition: Steric Control in Aryl Iodide Activation at Rh(I) Promotes an Open‐Shell Rh(II) Pathway

ChemistryEurope, Volume 4, Issue 5, May 2026.
Steric hindrance in a bulky PCP pincer complex switches Rh(I) aryl‐iodide activation from the classical two‐electron oxidative addition route to a one‐electron pathway, yielding a paramagnetic RhIII complex and the aryl radical. The latter reacts with benzene to form biphenyl and a Rh(III) hydride.
Cecilia Mariel Gallego, Sol Santalla, Carina Gaviglio, Leonardo D. Slep, Fabio Doctorovich, Juan Pellegrino   +5 more
wiley   +1 more source

Methylxanthine and Flavonoid Contents from Guarana Seeds (Paullinia cupana): Comparison of Different Drying Techniques and Effects of UV Radiation

International Journal of Food Science
Guarana seeds are typically processed using one of three drying methods: traditional sun exposure, greenhouse drying, or the alguidar oven technique.
André Luiz Sampaio da Silva Junior, Madson Moreira Nascimento, Herick Macedo Santos, Ivon Pinheiro Lôbo, Rosilene Aparecida de Oliveira, Raildo Mota de Jesus   +5 more
doaj   +1 more source

Estudio descriptivo de biomarcadores de estrés oxidativo e inflamación en miocardiopatía chagásica [PDF]

, 2015
Introducción: Estudios indican que reacciones inflamatorias en el corazón se relacionarían con mayor producción de citoquinas que inducirían una mayor generación de especies reactivas de oxígeno y de nitrógeno (ROS/RNS).
Beloscar, Juan, Caffaratti, Julia Marina, Ceruti, María José, D'Arrigo, Mabel, Diviani, Romina, Gerrard, Gabriela, Lioi, Susana, Martí, María Belén   +7 more
core