Browsing by Author "Carbajo, J."
Now showing items 1-12 of 12
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Moscoso Cabello, Raúl Andrés; Carbajo, J.; López, M.; Núñez Vergara, Luis; Squella Serrano, Juan (ELSEVIER SCIENCE INC, 2011-02)We report that GCE modified with MWCNTs can be derivatized by the nitroaromatic drug nitrendipine (NTD) ((RS)-ethyl methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate) simply by dipping the electrode ...
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Carbajo, J.; Bollo Dragnic, Soledad; Núñez Vergara, Luis; Campero, A.; Squella Serrano, Juan (ELSEVIER SCIENCE, 2002-08-23)We have chosen 4-nitroimidazole (4-NIm) as a prototype of nitroimidazolic compounds in order to carry out an exhaustive cyclic voltammetric study in protic media, 0.1 M Britton-Robinson buffer+0.3 M KCl with ethanol as a ...
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Mozo, J. D.; Carbajo, J.; Sturm Schaub, Juan; Núñez Vergara, Luis; Salgado, P.; Squella Serrano, Juan (Wiley, 2012)A new, sensitive, reproducible and easy-to-use flow-injection method for determining nifuroxazide based on adsorptive stripping linear sweep voltammetry over screen-printed carbon electrodes is presented. The presented ...
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Squella Serrano, Juan; Campero, A.; Maraver, J.; Carbajo, J. (PERGAMON-ELSEVIER SCIENCE, 2006-10-25)The electrochemical reduction of 2-nitroimidazole in a non-aqueous medium using cyclic voltammetry (CV) at a mercury electrode was carried out. The 2-nitroimidazole derivative in DMF + 0.1 M tetra(n-butyl)ammonium ...
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Urzúa, J.; Carbajo, J.; Yánez, C.; Marco, J. F.; Squella Serrano, Juan (Springer, 2016)We report that glassy carbon electrodes (GCE) modified with multi-walled carbon nanotubes (MWCNTs) can be derivatized with 2,7-dinitro-9-fluorenone (2,7-NFN). The derivatization procedure involves simple immersion of the ...
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Núñez Vergara, Luis; Bollo Dragnic, Soledad; Atria Salas, Ana María; Carbajo, J.; Gunckel, S.; Squella Serrano, Juan (ELECTROCHEMICAL SOC INC, 2002-10)A comprehensive study of the electrochemical characteristics of 2-, 3-, and 4-nitroanisole isomers in three different electrolytic media has been carried out. Furthermore, kinetic characterization of the one-electron ...
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Moscoso Cabello, Raúl Andrés; Carbajo, J.; Squella Serrano, Juan (Sociedad Chilena de Química, 2014)We report a voltammetric study of several nitroaromatic compounds such as the drugs: Nifedipine, Nitrendipine, Furnidipine and Nisoldipine in multiwalled carbon nanotubes (MWCNT) modified electrodes. All the compounds are ...
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Merino, M.; Carbajo, J.; Núñez Vergara, Luis; Squella Serrano, Juan (SOCIEDAD CHILENA DE QUIMICA, 2000-03)The electrochemical nitroreduction of nitrofurantoin has been studied on carbon paste and glassy carbon electrodes. We can observe a monoelectronic reversible couple ArNO2/ArNO2- and an irreversible peak due to the further ...
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Núñez Vergara, Luis; Salazar González, Ricardo Andrés; Camargo Grandón, Rodrigo; Carbajo, J.; Conde, B.; Navarrete Encina, Patricio; Squella Serrano, Juan (PERGAMON-ELSEVIER SCIENCE, 2007-06-15)This work reports the electrochemical oxidation of three newly synthesized C4-hydroxyphenyl-substituted 1,4-dihydropyridine derivatives in dimethylsulfoxide. The reactivity of the compounds with ABAP-derived alkylperoxyl ...
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Squella Serrano, Juan; Núñez Vergara, Luis; Moscoso Cabello, Raúl Andrés; Pezoa Olivares, Jacqueline; Carbajo, J. (ELECTROCHEMICAL SOC INC, 2009)The electrochemical reduction of 1-methyl-4-nitro-2-carboxyimidazole (RNO2COOH) in a nonaqueous medium produced two reduction signals, which were influenced by the dissociation of the compound. The first reduction signal ...
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Voltammetric behaviour of clonixin and its differential pulse polarographic determination in tablets Álvarez Lueje, Alejandro; Sturm Schaub, Juan; Núñez Vergara, Luis; Carbajo, J.; Squella Serrano, Juan (MARCEL DEKKER INC, 2000)Clonixin, a non-steroid analgesic, can be both reduced at the mercury electrode and oxidised at the glassy carbon electrode. The anodic response shows well-defined waves in a pH range between pH 2-12. The polarographic ...
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Carbajo, J.; Bollo Dragnic, Soledad; Núñez Vergara, Luis; Navarrete Encina, Patricio; Squella Serrano, Juan (ELSEVIER SCIENCE, 2000-12-01)In this report we have chosen ethyl-m-nitrobenzoate (EMNB) as a prototype of a nitroaromatic compound in order to carry out a detailed cyclic voltammetric study focused on the coupled chemical reaction of the generated ...