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Erschienen in: Polymer Bulletin 10/2020

26.10.2019 | Original Paper

Preparation of triaminotriazine-based polyimide-modified electrodes and their use for selective detection of catechin in green tea samples

verfasst von: Serap Titretir Duran, Nurcan Ayhan, Büşra Aksoy, Süleyman Köytepe, Aziz Paşahan

Erschienen in: Polymer Bulletin | Ausgabe 10/2020

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Abstract

An effective electrochemical sensor was developed from triaminotriazine-based polyimide (PI) films as selective membrane for the detection of catechin (CT). Firstly, triaminotriazine-based PI films were synthesized from 2,4,6-triamino-1,3,5-triazine (TAT) and pyromellitic dianhydride by thermal imidization method with different monomer ratios. Structural and morphological of synthesized PI films were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, and atomic force microscopy. Prepared polyimide films were used as membrane for the preparation of the modified electrodes. Catechin (CT) selectivity behavior of polyimide-modified Pt electrodes was investigated by means of differential pulse voltammetry (DPV). DPV voltammograms showed that peak currents of the modified electrode increased proportionally with increase in CT concentration. TAT-PI-1/1 sensor showed high selectivity, a high regression coefficient (R value = 0.9982 ), good repeatability (RSD of 2.15%), and limit of detection 0.0152 mM for catechin determination in the presence of multiple interferent species (1 mM coumaric acid, ascorbic acid, gallic acid, lactose, sucrose, fructose, maltose and glucose). Moreover, the TAT-PI-1/1 sensor was employed to determine CT in real sample.

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Metadaten
Titel
Preparation of triaminotriazine-based polyimide-modified electrodes and their use for selective detection of catechin in green tea samples
verfasst von
Serap Titretir Duran
Nurcan Ayhan
Büşra Aksoy
Süleyman Köytepe
Aziz Paşahan
Publikationsdatum
26.10.2019
Verlag
Springer Berlin Heidelberg
Erschienen in
Polymer Bulletin / Ausgabe 10/2020
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-019-03005-5

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