ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Synthesis, characterization and sensor applications of a new 1,4-naphthoquinone derivative molecule

Oguz Özbek, Onur Cem Altunoluk, Kıymet Berkil Akar, and Ömer Isildak

Department of Molecular Biology and Genetics, Faculty of Science and Arts, Tokat Gaziosmanpaşa University, Tokat, Turkey

E-mail: oguz.ozbek@gop.edu.tr

Received: 2 February 2025  Accepted: 1 March 2025

Abstract:

In this study, a new naphthoquinone derivative molecule was synthesized with a very high yield (99.0%), and its sensor properties were investigated. The characterization of the synthesized molecule was carried out using spectroscopic methods such as ¹H-, ¹³C-NMR and FT-IR. Polymer membrane potentiometric sensors were prepared using this molecule as an ionophore, and these newly prepared sensors exhibited selective behavior toward barium(II) ions. The one of barium(II)-selective potentiometric sensors developed had a low detection limit of 3.51 × 10⁻⁶ mol L⁻¹ in a wide concentration range of 1.0 × 10⁻¹–1.0 × 10⁻⁵ mol L⁻¹ and had also a near-Nernstian behavior. The proposed barium(II) selective sensor was shown to have good reproducibility, fast response time (< 5 s), wide pH working range (5.0–10.0) and low cost production. Besides, it could detect barium(II) ions in various water samples with high recoveries; and based on its advantages, it can be proposed as a new alternative in the analysis of barium(II) ions.

Keywords: Naphthoquinones; Barium(II); Potentiometry; Ion-selective electrodes; Synthesis

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-025-04002-x

Chemical Papers 79 (5) 3249–3260 (2025)