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Reference type: Journal
Authors: Wang ZM, Wang L, Zhou C, Sun CY
Article Title: Determination of cesium ions in environmental water samples with a magnetic multi-walled carbon nanotube imprinted potentiometric sensor.
Publication date: 2021
Journal: RSC Advances
Volume: 11
Issue: (17)
Page numbers: 10075-10082.
DOI: 10.1039/D0RA09659H

Abstract: A potentiometric sensor, based on the glassy carbon electrode (GCE) modified with a magnetic multi-walled carbon nanotubes/cesium ion-imprinted polymer composite (MMWCNTs@Cs-IIP), is introduced for the detection of cesium(I). The IIP was synthesized using cesium ions as the template ions, chitosan as the functional monomer and glutaraldehyde as the cross-linking agent. The membrane, which was coated on the surface of the GCE, was prepared using MMWCNTs@Cs(I)-IIP as the modifier, PVC as the neutral carrier, 2-nitrophenyloctyl ether as the plasticizer and sodium tetraphenylborate as the lipophilic salt. The proposed sensor exhibited a Nernstian slope of 0.05954 V dec-1 in a working concentration range of 1 × 10-7 to 1 × 10-4 M (mol L-1) with a detection limit of 4 × 10-8 M. The sensor exhibited high selectivity for cesium ions and was successfully applied for the determination of Cs(I) in real samples
Template and target information: cesium ion


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