@Article{JuliãoAlLaFeCoSe:2005:VoBeNi,
author = "Juli{\~a}o, Murilo S{\'e}rgio da Silva and Almeida, {\'E}rica
Cristina and La Scalea, Mauro Aquiles and Ferreira, Neiden{\^e}i
Gomes and Compton, Richard G. and Serrano, S{\'{\i}}lvia Helena
Pires",
affiliation = "{Universidade Estadual Vale do Acara{\'u} / Universidade de
S{\~a}o Paulo} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Universidade de S{\~a}o Paulo} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Oxford University}
and {Universidade de S{\~a}o Paulo}",
title = "Voltammetric behavior of nitrofurazone at highly boron doped
diamond electrode",
journal = "Electroanalysis",
year = "2005",
volume = "17",
number = "3",
pages = "269--274",
month = "Feb",
keywords = "nitrofurazone, radical anion, mannitol, cyclic voltammetry, highly
boron doped diamond film.",
abstract = "The electrochemical behavior of nitrofurazone (NFZ) at a highly
boron doped diamond (BDD) electrode was studied in
Britton-Robinson (BR) buffer using cyclic voltammetry. NFZ was
directly reduced to the amine derivative (RNH2) in the pH range of
2.0 to 4.0 in a process involving six (6.0 +/- 0.4) electrons and
six protons. In the range of pH 7.0 to 12 and. predominantly
aqueous medium, the reduction step split into its two components:
the reduction of NFZ to the to hydroxylamine derivative (RNHOH) in
processes involving one radical anion (RNO2.-) and reduction of
RNO2.- and three (3.1 +/- 0.1) electrons, respectively. On the
anodic scan of the voltammograms and at pH 8.0, the oxidation of
the hydroxylamine to the nitroso derivative (RNO), was observed in
a process involving 2 (1.7 +/- 0.2) electrons and 2 protons. In
addition and unreported in the literature on any electrode
material, was the detection of a new oxidation peak at pH > 8.0.
which was observed regardless of whether NFZ had been previously
reduced or not. The calculation of n, number of electrons,
involved in each electrochemical step was satisfactorily
accomplished using the Randles-Sevcik equation.",
doi = "10.1002/elan.200403093",
url = "http://dx.doi.org/10.1002/elan.200403093",
issn = "1040-0397",
language = "en",
targetfile = "269_ftp.pdf",
urlaccessdate = "29 jun. 2024"
}