Browsing by Subject "Voltametría"
Now showing items 1-8 of 8
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(AOAC INTERNATIONAL, 2004-11)A new method for the sequential determination of attapulgite and nifuroxazide in pharmaceutical formulations by first- and second-derivative spectrophotometry, respectively, has been developed. In order to obtain the optimal ...
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(ELSEVIER SCIENCE BV, 2008-05-30)An adsorptive stripping voltammetry method for the determination of iron has been developed. The procedure is based on the adsorptive collection of a complex of iron with 1-(2-piridylazo)-2-naphthol (PAN) on a bismuth-coated ...
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(ELSEVIER SCIENCE, 1998-08)The electrochemical reduction of four 2,5-dimethoxy nitrobenzene 6-substituted derivatives in aqueous and mixed media by cyclic voltammetry, tast and differential pulse polarography were studied. In aqueous media, pH > 8, ...
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(PERGAMON-ELSEVIER SCIENCE, 1998-01)The anodic and cathodic behavior of nisoldipine, 3-isobutyl-5-methyl-1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)pyridine-3,5-dicarboxylate, are reported. This drug belongs to the nitroaryl-1,4-dihydropyridine family, known ...
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Electrogeneration of nitranion species from nitrofuryl substituted 1,4-dihydropyridine derivatives (ELSEVIER SCIENCE, 2005-01)We have synthesized and studied the electroreduction of 1,4-dihydropyridine derivatives with a nitrofuryl substituent at 4-position. The one-electron reduction of these compounds in non-aqueous medium generates the ...
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(BENTHAM SCIENCE PUBL, 2005-04)The redox chemistry of different nitro compounds of biological significance is focused to understand how the reduction of the nitro group can play an active role in several aspects as: electroanalytical determinations, ...
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Voltammetric behavior of a 4-nitroimidazole derivative - Nitro radical anion formation and stability (ELECTROCHEMICAL SOC INC, 2005)A new synthesized compound, 1-methyl-4-nitro-2-hydroxymethylimidazole (4-MNImOH), was electrochemically reduced at the mercury electrode in aqueous, mixed, and aprotic media. In an aqueous medium, only one voltammetric ...
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Voltammetric behavior of zaleplon and its differential pulse polarographic determination in capsules (AOAC INTERNATIONAL, 2005-07)In this work both the electrochemical behavior and the analysis of the hypnotic pyrazolopyrimidine derivative zaleplon were studied. Zaleplon in ethanol-0.1 M Britton Robinson buffer solution (30-70) showed 2 irreversible, ...