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

• Type: Article in International Scientific Journal
• Date: 2001

Authors

Pereira, CM (Author) FCUP; Tirilly, N (Author) Other; Martins, MC (Author) Other; Silva, F (Author) FCUP

Journal

Title: Fresenius' Journal of Analytical Chemistry

Vol. 369

Pages: 609-612

ISSN: 0937-0633

Publisher: Springer

Indexing

ISI Web of Knowledge - 7 Citations

Scopus - 7 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4