5,5-DIETHYLBARBITURATE TUBULAR ELECTRODE FOR USE IN FLOW-INJECTION DETECTION SYSTEMS

• Tipo: Artigo em Revista Científica Internacional
• Data: 1990

Autores

LIMA, JLFC (Autor) FFUP; MONTENEGRO, MCBSM (Autor) FFUP; ALONSO, J (Autor) Outra; BARTROLI, J (Autor) Outra; RAURICH, JG (Autor) Outra

Revista

Título: Analytica Chimica Acta

Vol. 234

Páginas: 221-225

ISSN: 0003-2670

Editora: Elsevier

Indexação

ISI Web of Knowledge - 18 Citações

Scopus - 17 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-001-RN3

DOI: 10.1016/s0003-2670(00)83560-6

Abstract (EN): The construction, assessment and pharmaceutical appalications of a tubular potentiometric detector sensitive to the 5,5-diethylbarbiturate anion based on quaternary ammonium salt (tetraoctylammonium5,5-diethylbarbiturate) dissolved in o-nitrophenyl octyl ether immobilized in PVC are described. The intrinsic characteristics of the tubular electrode were determined in a low-dispersion manifold and compared with those of a conventional-shaped electrode with no internal reference solution and incorporating the same sensor. The behaviour of a double-channel flow-injection manifold with the same potentiometric detector was evaluated to assess its applicability to the determination of 5,5-diethylbarbiturate in pharmaceutical preparations. Data obtained in the determination of the anion in the latter matrices are presented and compared with those obtained by the conventional British Pharmacopoeia method. © 1990.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5