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Reference type: Journal
Authors: Bicim T, Yaman M
Article Title: Sensitivity Enhancement in Uranium Determination by UV-Visible Spectroscopy Using Ion Imprinted Polymer.
Publication date: 2016
Journal: Spectroscopy and Spectral Analysis
Volume: 36
Issue: (6)
Page numbers: 1992-1997.
Alternative URL: http://www.gpxygpfx.com/qikan/epaper/zhaiyao.asp?bsid=22953

Abstract: here is need to determination of uranium concentration at ppb level in environmental matrices. Due to low sensitivity of FAAS, UV-Visible Spectroscopy is generally used as measurement technique. In this study, ion-imprinted polymers (IIP) were prepared for uranyl ion (imprint ion) by formation of ternary (salicylaldoxime and 4-vinylpyridine) complex in 2-methoxy ethanol (porogen) following copolymerization with methacrylic acid (MAA) as a functional monomer and ethylene glycol dimethacrylate (EGDMA) as crosslinking monomer using 2,2-azobisisobutyronitrile as initiator. The synthesized polymers were characterized by FT-IR and TGA analysis. Arsenazo III in 3 M HClO4 was used as complexing agent in the measurement step. The optimal pH for preconcentration was found to be between 3.5~6.5 values. The developed method was applied to uranium (VI) determination in natural water samples.
Template and target information: uranyl ion, U(VI)
Author keywords: uranium, ion imprinted polymer, Arsenazo III, UV-vis spectroscopy

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