Ion imprinted polymer based potentiometric sensor for the trace determination of Cadmium (II) ions

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Abstract

A cadmium (II) ion selective electrode (ISE) based on an ion-imprinted polymer (IIP) as a novel ionophore has been prepared and studied. The ion-selective electrode (ISE) was prepared by dispersing cadmium (II) IIP particles in 2-nitrophenyloctyl ether as a plasticizer and then embedding them in a polyvinylchloride polymeric matrix. The Cd(II) ISE showed a nernstian response for cadmium (II) over the dynamic concentration range of 2.0 × 10−7–1.0 × 10−2 mol L−1, with a slope of 29.9 mV per decade. The limit of detection was 1.0 × 10−7 M. The proposed electrode revealed good selectivity over a wide variety of other cations including alkali, alkaline earth, heavy and transition metals. The accuracy of the proposed electrode was checked through the analysis of spiked water samples.

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Rezvani Ivari, S. A., Darroudi, A., Arbab Zavar, M. H., Zohuri, G., & Ashraf, N. (2017). Ion imprinted polymer based potentiometric sensor for the trace determination of Cadmium (II) ions. Arabian Journal of Chemistry, 10, S864–S869. https://doi.org/10.1016/j.arabjc.2012.12.021

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