Construction of a highly selective PVC-based membrane sensor for Ce(III) ions

A highly Ce(III) ion-selective poly vinyl chloride (PVC) membrane sensor based on N′-[(2-hydroxyphenyl)methylidene]-2-furohydrazide (NHMF) as an excellent sensing material is successfully developed. The electrode shows a good selectivity for Ce(III) ions with respect to most common cations including...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2007-01, Vol.120 (2), p.545-550
Main Authors: Zamani, Hassan Ali, Ganjali, Mohammad Reza, Adib, Mahdi
Format: Article
Language:English
Subjects:
Cations
Ce(III) ion-selective electrode
Earth
EDTA
Electrodes
Materials selection
Membranes
N′-[(2-Hydroxyphenyl)methylidene]-2-furohydrazide
Polyvinyl chlorides
Potentiometry
PVC membrane
Sensors
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Summary:A highly Ce(III) ion-selective poly vinyl chloride (PVC) membrane sensor based on N′-[(2-hydroxyphenyl)methylidene]-2-furohydrazide (NHMF) as an excellent sensing material is successfully developed. The electrode shows a good selectivity for Ce(III) ions with respect to most common cations including alkali, alkaline earth, transition and heavy metal ions. The proposed sensor exhibits a wide linear response with a slope of 19.4 ± 0.3 mV/decade over the concentration range of 1.0 × 10 −5 to 1.0 × 10 −1 M, and a detection limit of 7.6 × 10 −6 M of Ce(III) ions. The sensor response is independent of pH in the range of 3.5–10.0. The proposed electrode was applied as an indicator electrode in potentiometric titration of Ce(III) ions with EDTA and C 2O 4 2. It was also successfully applied in the determination of cerium ions in aqueous samples.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2006.03.013