Development of Zn(II) sensors based on the assisted transfer of metal ions by hydrophobic ligands through gel-supported microinterfaces

• Tipo: Artigo em Revista Científica Internacional
• Data: 2001

Autores

Pereira, CM (Autor) FCUP; Tirilly, N (Autor) Outra; Martins, MC (Autor) Outra; Silva, F (Autor) FCUP

Revista

Título: Fresenius' Journal of Analytical Chemistry

Vol. 369

Páginas: 609-612

ISSN: 0937-0633

Editora: Springer

Indexação

ISI Web of Knowledge - 7 Citações

Scopus - 7 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-000-VXQ

DOI: 10.1007/s002160100768

Abstract (EN): Square-wave voltammetry (SWV) has been used to study the transfer of zinc(II) ion under static conditions, assisted by 5,6-diphenyl-3-(2-pyridyl)-1,2,4-triazine (DPT), through gel-supported microinterfaces. Microhole arrays created by laser photoablation of thin polyester films were used to support an organic gel phase prepared by addition of 1,3 : 2,4-dibenzylidenesorbitol (DBS) to a solution of o-nitrophenyloctyl ether (o-NPOE) with the appropriate supporting electrolyte. The results show that SWV can be used with the gel-supported microinterfaces if a gelified aqueous reference is used for the organic phase. Under such conditions a preliminary estimate of the detection limit for the determination of Zn2+ is 5 x 10(-8) mol L-1.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4