Development of gallic acid sensors based on polyimide-modified platinum electrode

PAŞAHAN A., AYHAN N., OZCAN I., DURAN S., KÖYTEPE S.

POLYMER-PLASTICS TECHNOLOGY AND MATERIALS, vol.58, no.10, pp.1125-1139, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 58 Issue: 10
  • Publication Date: 2019
  • Doi Number: 10.1080/03602559.2018.1542720
  • Journal Name: POLYMER-PLASTICS TECHNOLOGY AND MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1125-1139
  • Keywords: Polyimides, membranes, sensors, gallic acid, SOLID-STATE ELECTROCHEMISTRY, ASCORBIC-ACID, VOLTAMMETRIC DETERMINATION, AROMATIC POLYIMIDE, HYDROGEN-PEROXIDE, MEMBRANES, DOPAMINE, BIOSENSORS, SURFACE
  • Inonu University Affiliated: Yes

Abstract

A series aromatic polyimide (PI) membranes in the form of permselective films was synthesised from different dianhydrides with two diamine monomers for gallic acid (GA) measurement. The obtained PI films were examined by Spectroscopic techniques, Scanning Electron Microscopy (SEM) and thermal analysis techniques and then used to fabricate the selective films on the modified electrode. Because of their excellent film properties, as the permselective polymeric membranes were used for determination of GA in the presence of various interferences and real sample. The PI-1-modified Pt electrode showed a very high R-value (0.9935) and reproducibility for GA determination, as well as high selectivity.