New solid state contact potentiometric sensor based on a thiosemicarbazone derivative molecule for determination of copper(II) ions in environmental samples       
Yazarlar (5)
Doç. Dr. Oğuz ÖZBEK Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Ömer Berkay Uğur
Zonguldak Bulent Ecevit University, Türkiye
Serkan Ören
Zonguldak Bülent Ecevit Üniversitesi, Türkiye
Prof. Dr. Meliha Burcu GÜRDERE Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Sefa Kocabaş
Zonguldak Bulent Ecevit University, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Polyhedron
Dergi ISSN 0277-5387 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 04-2024
Cilt No 252
Sayı 1
Sayfalar 116878 / 0
DOI Numarası 10.1016/j.poly.2024.116878
Makale Linki https://doi.org/10.1016/j.poly.2024.116878
Özet
Thiosemicarbazone derivative molecules have proven to be good sensor materials in studies using various analytical methods. In this study, new ion–selective sensors were prepared using 2–furaldehyde thiosemicarbazone and their potentiometric properties were then tested. The prepared sensors exhibited a very good selectivity towards copper(II) ions over various ions. Surface images and mappings of the prepared sensors were examined by scanning electron microscopy. Copper(II)–selective sensors had a Nernstian response of 28.5 ± 1.5 mV/decade, and a low detection limit of 6.89 × 10-6 mol L-1 over a wide concentration range of 1.0 × 10-5–1.0 × 10-1 mol L-1 (R2 = 0.9992). The newly prepared copper(II)–selective sensors were shown to be produced reproducibly, stable and economically. The sensors, which can operate in a wide pH range of 5.0–9.0 without being affected by pH changes, had a fast response time of 5 s. The newly developed copper(II)–selective sensors were used as indicator electrodes for the potentiometric titration of copper(II) ions with ethylenediaminetetraacetic acid and were successfully applied for the determination of copper(II) ion content in various environmental samples with very good performance. The data obtained with the developed sensor were compared with atomic absorption spectroscopy and it was determined that the results of both methods were compatible with each other.
Anahtar Kelimeler
Copper | Heavy metal | Potentiometry | Sensor | Thiosemicarbazone