Title of article
A PVC Membrane Electrode for Zirconium Based on 4-Nitrophenylazo-n-(2-hydroxypropylamine) Salicylidine
Author/Authors
SHAMSPUR, Tayebeh shahid bahonar university of kerman - Mineral Industry Research Institute - Department of Chemistry, كرمان, ايران , SHEIKHSHOAIE, Mahdieh payame noor university - Department of Chemistry, تهران, ايران , SHEIKHSHOAIE, Mahdieh shahid bahonar university of kerman - Department of Mining Engineering, كرمان, ايران , MASHHADIZADEH, Mohammad Hossin kharazmi university (university of tarbiat moallem) - Faculty of Chemistry, تهران, ايران , SAEEDNIA, Samira shahid bahonar university of kerman - Department of Chemistry, كرمان, ايران
From page
609
To page
616
Abstract
A potentiometric zirconium sensor based on the use of 4-nitrophenylazo-N-(2-hydroxypropylamine)salicylidine (NHPS) as an ion carrier in poly (vinyl chloride) (PVC) matrix, was developed. The best performance was observed for the membrane composition including 26.27% PVC, 65.67% N-POE, 5.43% NaTPB and 2.63% ionophore.The electrode which can be used for at least 1 month without observing any deviation exhibited a Nernstian slope of 29.37 mV per decade and a linear range of 1.0×10^-2 to 2.0×10^-7 mol L^-1, with a detection limit of 2.0×10^−8 mol L^−1, for zirconium ion. Also it showed a fast response time of about 10 s. The proposed membrane sensor revealed good selectivity for zirconium ion over a wide variety of other metal ions and could be used in pH range of 5–9.5. It was successfully used as an indicator electrode in potentiometric titration of zirconium ion.
Keywords
Ion selective electrode , Zirconium , Potentiometry , Schiff base
Journal title
Gazi University Journal Of Science
Journal title
Gazi University Journal Of Science
Record number
2600500
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