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Reference type: Journal
Authors: Shamsipur M, Rajabi HR
Article Title: Flame photometric determination of cesium ion after its preconcentration with nanoparticles imprinted with the cesium-dibenzo-24-crown-8 complex.
Publication date: 2013
Journal: Microchimica Acta
Volume: 180
Issue: (3-4)
Page numbers: 243-252.
DOI: 10.1007/s00604-012-0927-x

Abstract: We report on the synthesis of cesium ion-imprinted polymer nanoparticles that were prepared by a precipitation polymerization strategy using dibenzo-24-crown-8 ether as a selective crown ether, methacrylic acid as the functional monomer, ethyleneglycol dimethacrylate as the crosslinker, and AIBN as the radical initiator. The prepared sorbents have a diameter of 5090 nm and display highly selective binding capability for Cs(I) ion, with rapid adsorption and desorption. The maximum adsorption capacity is 50 mg g-1, and the preconcentration factor is around 100 at pH 9.0. Cesium ion was then determined by flame photometry with a detection limit (3σA) of 0.7 ng mL-1 and with a standard deviation of 0.9 %.
Template and target information: cesium ion, Cs(I)
Author keywords: Ion imprinted polymers, nanobeads, Cs+ ion, Dibenzo-24-crown-8 ether, Flame photometry


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