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Reference type: Journal
Authors: Yasinzai M, Mustafa G, Asghar N, Ullah I, Zahid M, Lieberzeit PA, Latif U, Han DX
Article Title: Ion imprinted polymer based receptors for sensitive and selective detection of mercury ions in aqueous environment.
Publication date: 2018
Journal: Journal of Sensors
Page numbers: ArticleNo8972549.
DOI: 10.1155/2018/8972549
Alternative URL: https://www.hindawi.com/journals/js/2018/8972549/

Abstract: Interdigital electrodes (IDE) coated with ion imprinted polymers (IIP) as recognition materials have been tested for screening and ion quantification. For Screening of receptors, three polymer systems based on styrene (Sty), N-vinylpyrrolidone (NVP), and Sty-co-NVP were examined to identify an efficient recognition system for mercury ions in an aqueous environment. Results showed that all these polymeric systems can detect analyte even in very low concentration i.e. 10 ppm. Ion imprinted polystyrene system proved to be an ideal receptor for detecting mercury ions in solution with a detection limit of 2 ppm. The sensitivity of ion imprinted co-polymeric system was further enhanced by making its composite with graphene oxide and estimated detection limit of composite system was around 1 ppm. Ion imprinted Sty-co-NVP graphene composite based sensor system exhibits 2 to 5 times higher sensor response towards templated analyte in comparison to other polymer based sensor systems. Moreover, the composite based sensor shows very lower or negligible response to competing metal ions with similar or different oxidation states such as Zn, Mg, Na, and As metal ions.
Template and target information: mercury ion, Hg(II)
Author keywords: Ion imprinted polymers, Heavy metal ions, sensor, interdigital electrodes

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