Abstract
Herein, we developed a novel potentiometric sensor that exhibits high selectivity towards Ag+ ions, using a newly synthesized phenol derivative (4) molecule as an electroactive material (ionophore). The sensor was prepared by coating the surface of a conductive solid contact by a membrane containing bis(2-ethylhexyl)sebacate (BEHS) as plasticizer, poly (vinly chloride) (PVC) as a polymeric matrix, electroactive material (4), and potassium tetrakis(4-chlorophenyl)borate (KTpClPB) as an additive. The developed sensor exhibited a wide linear concentration range of 1.0 × 10–6–1.0 × 10−1 mol L−1 and a lower detection limit of 5.87 × 10−7 mol L−1. The sensor exhibited quite good selectivity over other cationic species, and its potential response remained unaffected of pH in the range of 3.0–7.0. In addition, the developed sensor had a short response time of 8 s, good repeatability, and stability. Finally, the proposed sensor was used in the direct determination of Ag+ in different water samples, and as an indicator electrode for the end point determination in the potentiometric titration of Ag+ ions against sodium chloride.
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The authors would like to thank Research Assistant Caglar Berkel for his contributions.
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Özbek, O., Çetin, A., Koç, E. et al. Synthesis and Sensor Properties of a Phenol Derivative Molecule: Potentiometric Determination of Silver(I) Ions. Electrocatalysis 13, 486–493 (2022). https://doi.org/10.1007/s12678-022-00738-2
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DOI: https://doi.org/10.1007/s12678-022-00738-2