MICRO-HOLE INTERFACE FOR THE AMPEROMETRIC DETERMINATION OF IONIC SPECIES IN AQUEOUS-SOLUTIONS

• Tipo: Artigo em Revista Científica Internacional
• Data: 1994

Autores

OSBORNE, MC (Autor) Outra; SHAO, Y (Autor) Outra; PEREIRA, CM (Autor) FCUP; GIRAULT, HH (Autor) Outra

Revista

A Revista está pendente de validação pelos Serviços Administrativos.

Título: JOURNAL OF ELECTROANALYTICAL CHEMISTRY

Vol. 364

Páginas: 155-161

ISSN: 0022-0728

Indexação

ISI Web of Knowledge - 109 Citações

Scopus - 109 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-001-KFG

DOI: 10.1016/0022-0728(93)02941-a

Abstract (EN): Ion transfer reactions at single microhole interfaces were studied using only pure water as the aqueous phase electrolyte resulting in a significantly increased potential window. The organic phase supporting electrolyte concentrations were reduced to micromolar levels and the results obtained were analysed using the general theoretical relationships derived by Oldham (J. Electroanal. Chem., 250 (1988) 1) for steady state voltammetry with little added electrolyte. The voltammetric response of the single microhole interface was investigated with regard to size and shape and as a result a novel amperometric sensing system for ammonium ions is proposed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7