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Reference type: Journal
Authors: Huang K, Chen Y, Zhou F, Zhao XY, Liu JF, Mei SR, Zhou YK, Jing T
Article Title: Integrated ion imprinted polymers-paper composites for selective and sensitive detection of Cd(II) ions.
Publication date: 2017
Journal: Journal of Hazardous Materials
Volume: 333
Page numbers: 137-143.
DOI: 10.1016/j.jhazmat.2017.03.035
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0304389417302017

Abstract: Paper-based sensor is a new alternative technology to develop a portable, low-cost, and rapid analysis system in environmental chemistry. In this study, ion imprinted polymers (IIPs) using cadmium ions as the template were directly grafted on the surface of low-cost print paper based on the reversible addition-fragmentation chain transfer polymerization. It can be applied as a recognition element to selectively capture the target ions in the complex samples. The maximum adsorption capacity of IIPs composites was 155.2 mg g-1 and the imprinted factor was more than 3.0. Then, IIPs-paper platform could be also applied as a detection element for highly selective and sensitive detection of Cd(II) ions without complex sample pretreatment and expensive instrument, due to the selective recognition, formation of dithizone-cadmium complexes and light transmission ability. Under the optimized condition, the linear range was changed from 1 to 100 ng mL-1 and the limit of detection was 0.4 ng mL-1. The results were in good agreement with the classic ICP-MS method. Furthermore, the proposed method can also be developed for detection of other heavy metals by designing of new IIPs
Template and target information: cadmium ion, Cd(II)
Author keywords: Cadmium ions, Ion-imprinted polymers, Paper sensor, colorimetric detection, Water monitoring


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