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Sensors 2007, 7(4), 438-447; doi:10.3390/s7040438

Design of a Selective and Sensitive PVC-Membrane Potentiometric Sensor for Strontium Ion Based on 1,10-Diaza-5,6-benzo-4,7-dioxacyclohexadecane-2,9-dioneas a Neutral Ionophore

1
Department of Chemistry, Razi University, Kermanshah, Iran
2
Department of Science, College of Agriculture, Mazandaran University, Sari, Iran
3
Department of Chemistry, Shiraz University, Shiraz, Iran
*
Author to whom correspondence should be addressed.
Received: 6 February 2007 / Accepted: 16 March 2007 / Published: 12 April 2007
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Abstract

A novel PVC membrane sensor for the Sr2+ ion based on 1,10-diaza-5,6-benzo-4,7- dioxacyclohexadecane-2,9-dione has been prepared. The sensor possesses a Nernstian slope of 30.0 ± 0.6 mV decade-1 over a wide linear concentration range of 1.6 × 10-6-3.0 ×10-3 M with a detection limit of 6.3 ×10-7 M. It has a fast response time of less than 15 s and can be used for at least two months without any considerable divergence in potential. The potentiometric response is independent of the pH of test solution in the pH range 4.3-9.4. The proposed electrode shows good selectivities over a variety of alkali, alkaline earth, and transition metal ions. View Full-Text
Keywords: ion-selective electrode; Sr2+; PVC-membrane; macrocyclic diamide; potentiometry ion-selective electrode; Sr2+; PVC-membrane; macrocyclic diamide; potentiometry
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Shamsipur, M.; Kazemi, S.Y.; Sharghi, H. Design of a Selective and Sensitive PVC-Membrane Potentiometric Sensor for Strontium Ion Based on 1,10-Diaza-5,6-benzo-4,7-dioxacyclohexadecane-2,9-dioneas a Neutral Ionophore. Sensors 2007, 7, 438-447.

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