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

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.

Graphical Abstract

KEYWORDS:

• Polyimides
• membranes
• sensors
• gallic acid

Acknowledgments

The authors thank the Inonu University Scientific Research Projects Unit for their financial support under the grant BAP 2016/116.

Additional information

Notes on contributors

Aziz Paşahan

Aziz Paşahan received his Ph.D. in Electrochemistry from İnönü University in 2008. He is now working as Assoc Prof. Dr. in Department of Chemistry, İnönü University. His current interest ranges from amperometric biosensors, sensor design and polymeric materials

Nurcan Ayhan

Nurcan AYHAN obtained her M.Sc. degree from İnönü University.  His research interests include  amperometric sensor for analytes of biological importance.

İmren Özcan

İmren ÖZCAN Ph.D. student at İnönü University. She received her master’s in 2015 from İnönü University. She is pursuing her Ph.D. degree in the field of polymer polymer synthesis and characterization under the supervision of Prof. Dr. Süleyman Köytepe

Serap Titretir Duran

Serap Titretir Duran is presently working as a research scholar Department of Chemistry, İnönü University. His current field of interest is Analytical Chemistry. Duran received his Ph.D. in Analytical Chemistry from İnönü University in 2001. He is now working Dr. in Department of Chemistry, İnönü University

Süleyman Köytepe

Süleyman Köytepe is presently working as a research scholar Department of Chemistry, İnönü University. His current field of interest is Polymer Chemistry. Köytepe received his Ph.D. in Polymer Chemistry from İnönü University in 2007. He is now working as Professor in Department of Chemistry, İnönü University. His current interest ranges from thermal stable polymers, biomaterials, polymeric composite materials and biosensors