A novel lutetium(III) PVC membrane sensor based on a new symmetric S–N Schiff's base for Lu(III) analysis in real sample

Autor: Mohammad Saleh Zabihi, Mohammad Reza Ganjali, Mitra Rohani, Masoud Salavati-Niasari, Abbas Zangeneh-Asadabadi, Hassan Ali Zamani
Rok vydání: 2010
Předmět:
Zdroj: Materials Science and Engineering: C. 30:917-920
ISSN: 0928-4931
DOI: 10.1016/j.msec.2010.04.010
Popis: A novel Lu(III) PVC membrane sensor has been constructed based on a new synthesized symmetric S–N Schiff's base, namely N-[(Z)-1-(2-thienyl)methylidene]-N-[4-(4-{[(Z)-1-(2-thienyl) methylidene]amino}benzyl)phenyl] amine (TBPA). The electrode showed a Nernstian slope of 19.8 ± 0.5 mV per decade across a wide concentration range of 1 . 0 × 10 − 6 to 1 . 0 × 10 − 2 mol L − 1 with a detection limit of 7.2 × 10 − 7 mol L − 1 . The proposed sensor showed high selectivity toward Lu(III) ion in comparison with common alkaline, alkaline earth, transition, and heavy metals specially lanthanide ions, and could be used over a pH range of 2.7–10.6. It can be used for at least 2 months without any considerable divergency in potentials and it has a relatively fast response time of
Databáze: OpenAIRE