CHARACTERIZATION OF POLYVINYL-CHLORIDE) BARIUM ION-SELECTIVE ELECTRODES WITHOUT AN INTERNAL REFERENCE SOLUTION

• Tipo: Artigo em Revista Científica Internacional
• Data: 1988

Autores

MOODY, GJ (Autor) Outra; THOMAS, JDR (Autor) Outra; Lima, JLFC (Autor) FFUP; MACHADO, AASC (Autor) Outra

Revista

Título: The Analyst

Vol. 113

Páginas: 1023-1027

ISSN: 0003-2654

Editora: Royal Society of Chemistry

Indexação

ISI Web of Knowledge - 49 Citações

Scopus - 35 Citações

Outras Informações

ID Authenticus: P-001-TAN

DOI: 10.1039/an9881301023

Abstract (EN): Two types of poly(vinyl chloride) (PVC) barium ion-selective electrodes are compared. Each electrode is based on a sensor formed from the tetraphenylborate of the non-ionic surfactant Antarox CO-880 and its complex with barium (tetraphenylborate complex) and uses 2-nitropnenyl phenyl ether as solvent mediator. The first electrode is an original type, fabricated as a classic PVC model, whereas in the second, the PVC sensor material is applied to the outer surface of an epoxy resin and has no internal filling solution. Apart from the fact that the epoxy-based electrode has a longer lifetime, the two types of ISE possess virtually identical electrochemical properties. The electrodes were also assessed for measuring sulphate by analate subtraction.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5