Work

Characterization and Application of Bismuth‐Film Modified Graphite‐Polyurethane Composite Electrodes

Year: 2010

Type: article

Abstract: Bismuth films (BiF) deposited in situ on graphite‐polyurethane composite electrodes were successfully used for the determination of Zn, Cd, Pb, Cu and Hg, simultaneously in acetate buffer solution pH 4.5 using square wave anodic stripping voltammetry. It is possible to determine metals reoxidized at potentials more negative and more positive than Bi using in situ deposited BiF; reoxidation was studied by electrochemical impedance spectroscopy. The BiF‐modified electrode was applied to analyse tap water. The influence of surface‐active compounds, Triton X‐100 and bovine serum albumin, on the stripping of these metals was investigated; Nafion coatings did not significantly improve the performance.

Source: Electroanalysis

DOI: 10.1002/elan.200970003

Authors: Ivana Cesarino, Carla Gouveia‐Caridade, Rasa Pauliukaitė, Éder T. G. Cavalheiro, Christopher M. A. Brett

Institutions: Instituto de Química de São Carlos, University of Coimbra

Language: English

Topic: Electrochemical Analysis and Applications

Subfield: Electrochemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: bronze

Funders: Fundação de Amparo à Pesquisa do Estado de São Paulo, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Fundação para a Ciência e a Tecnologia

Awards: CARACTERIZAÇÃO E INIBIÇÃO DA CORROSÃO EM SUPERFÍCIES METÁLICAS MODIFICADAS, G4508731996, G5898431016, Nanobioelectroquímica: desenvolvimento, caracterização da superfície e aplicações de eléctrodos modificados por nanoestruturas automontadas com DNA ou enzymas