The use of thiazole derivative molecules as sensor materials: Potentiometric determination of Cu(II) ions       
Yazarlar (3)
Serkan Ören
Zonguldak Bülent Ecevit Üniversitesi, Türkiye
Doç. Dr. Oğuz ÖZBEK Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Prof. Dr. Ömer IŞILDAK Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale
Makale Alt Türü ESCI dergilerinde yayınlanan tam makale
Dergi Adı Vietnam Journal of Chemistry
Dergi ISSN 2572-8288 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler ESCl, Scopus
Makale Dili İngilizce
Basım Tarihi 04-2024
Cilt No 62
Sayı 4
Sayfalar 486 / 492
DOI Numarası 10.1002/vjch.202300295
Makale Linki https://doi.org/10.1002/vjch.202300295
Özet
In this study, poly(vinyl chloride) (PVC)–membrane potentiometric sensors for the determination of copper(II) ions were prepared using 2-acetamido-4-(2-hydroxyphenyl)thiazole (L1), 2-amino-4-(trifluoromethyl)thiazole-5-carboxylic acid (L2) and ethyl 2-amino-4,5,6,7-tetrahydrobenzo[d]thiazole-6-carboxylate (L3) ionophores. It was determined that the potentiometric performance characteristics of the sensors prepared with L1 were superior to the others. Based on these properties, the optimum membrane composition was determined as 3.0% ionophore (L1), 64.0% bis(2–ethylhexyl)adipate (DEHA), 32.0% PVC and 1.0% potassium tetrakis (p–chlorophenyl) borate (KTpClPB). The newly developed sensor had a low detection limit of 6.74 × 10−7mol L−1 over a wide concentration range of 1.0 × 10−1–1.0 × 10−6mol L−1. Compared with different metal ions, the sensor showed good selectivity to copper(II) ions, had a repeatable, stable and fast response time. The copper(II)–selective sensor could work in a wide range without being affected by pH changes (5.0–9.0). It was used as indicator electrode for the potentiometric titration of copper(II) ions with ethylenediaminetetraacetic acid (EDTA), and successfully applied for the determination of copper(II) ions content in different water samples.
Anahtar Kelimeler
copper(II) | ion-selective electrodes | potentiometry | sensor | thiazole