Browsing by Author "Aguirre, María Jesús"
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Cheuquepán, W.; Villagra, D.; Azócar, M. I.; Ramírez, G.; Chen, Y. Y.; Matsuhiro, B.; Mendoza, L.; Isaacs Casanova, Mauricio; Aguirre, María Jesús (SOC CHILENA QUIMICA, 2010-03-16)In this study, we compared four glassy carbon electrodes modified with adsorbed porphyrins of cobalt containing one, two, three, or four bis(methoxyphenyl) groups as substituents of the ligand. The aim of this work was ...
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Aguirre, María Jesús; Chen, Yo Y.; Isaacs Casanova, Mauricio; Matsuhiro, Betty; Mendoza, Leonora; Torres, Simonet (ELSEVIER, 2010)The anthocyanin fractions were extracted from Cabernet Sauvignon red wine, skins of Vitis vinifera grapes and raspberry fruits (Rubus idaeus). In red wine extract, 16 anthocyanins were identified, malvidin-3-Oglucoside being ...
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Dreyse, Paulina; Isaacs Casanova, Mauricio; Iturriaga-Vásquez, Patricio; Villagra, Diego; Aguirre, María Jesús; Kubiak, Clifford P.; Glover, Starla D.; Goeltz, John C. (ELSEVIER SCIENCE, 2010-08-13)This work describes the preparation of a new tetraruthenated porphyrin and the corresponding polymeric film. This macromolecule consists of a Ni(II) tetrapyridylporphyrin coordinated to four [Ru(5- NO2-phen)2Cl]+ moieties. ...
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Calfumán, Karla; García, Macarena; Aguirre, María Jesús; Matsuhiro, Betty; Mendoza, Leonora; Isaacs Casanova, Mauricio (Wiley InterScience, 2010)This work describes electrocatalytic detection of S(IV) compounds in water-ethanol solutions under acidic conditions, on a glassy carbon electrode modified with Co(II) tetraruthenated porphyrin electrostatically assembled ...
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Calfumán, Karla; Aguirre, María Jesús; Villagra, Diego; Yáñez Soto, Claudia; Arévalo, Carmen; Matsuhiro, Betty; Mendoza, Leonora; Isaacs Casanova, Mauricio (Springer, 2010)In this work, the modification of a glassy carbon electrode with tetraruthenated porphyrins electrostatically assembled onto a Nafion film, previously adsorbed on the electrode surface, is reported. This modified electrode ...
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Bravo, Paz; Isaacs, Fabiola; Ramírez, Galo; Armijo, Francisco; Isaacs Casanova, Mauricio; Aguirre, María Jesús; Zamora, Claudia; Trollund, Ejnar (SOCIEDAD CHILENA DE QUIMICA, 2005-12)The aim of this work was the study of three different modified electrodes where the substrate and the porphyrin used to modify the electrodic surface was the same. The surface electrode was a glass covered by a layer of ...