Utilização de eletrodos sólidos de amálgama para a determinação analítica de compostos orgânicos e inorgânicos

• Autor(a) principal: Souza,Djenaine de
• Data de Publicação: 2011
• Outros Autores: Melo,Luisa Célia, Correia,Adriana Nunes, Lima-Neto,Pedro de, Fatibello-Filho,Orlando, Mascaro,Lucia Helena
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Química Nova (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000300022
• topic: solid amalgam electrodes; mercury; environmentally friendly sensor

This review reports the use of solid amalgam electrodes in the electroanalytical determination of organic and inorganic compounds. The different types of amalgam electrodes are presented, and attention is paid to solid amalgam electrode, and here is presented details about the pre-treatment for activation and renovation and also possible modifications in its surface. The wide potential range, higher signal-to-noise ratio, mechanical stability enabling their application in flowing systems, and principally their resistance toward passivation, indicate that the solid amalgam electrodes are environmentally friendly alternatives to mercury electrodes, without loss in the sensitivity and reproducibility in voltammetric responses.