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Reference type: Journal
Authors: Hande PE, Samui AB, Kulkarni PS
Article Title: Selective nanomolar detection of mercury using coumarin based fluorescent Hg(II)-Ion imprinted polymer.
Publication date: 2017
Journal: Sensors and Actuators B: Chemical
Volume: 246
Page numbers: 597-605.
DOI: 10.1016/j.snb.2017.02.125
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0925400517303532

Abstract: In this work new coumarin based N-[4-(2-Oxo-2H-chromen-3-yl)-thiazol-2-yl]-acrylamide (OCTAA) fluorescent monomer was successfully synthesized for the first time. The OCTAA monomer possesses fluorescence property and gets quenched in presence of metal ions. Thus, we have synthesized Hg(II)-ion imprinted polymer (IIP) using OCTAA, ethylene glycol dimethacrylate (cross-linker) in presence of azobisisobutyronitrile by radical polymerization for selective detection of mercury. The polymerization was confirmed by FTIR and 13C NMR spectroscopy. The X-ray photoelectron spectroscopy study has been done to evaluate functional groups involved in complexation with mercury. The FE-SEM was used to study the morphology of IIP. Nitrogen adsorption-desorption experiments showed BET surface area of 76.90 and 48.1 m2 g-1 for IIP and NIP, respectively. The fluorescence for IIP was observed at 450 nm with linear response range of 0.05-1.2 μmol L-1 and detection limit 0.020 μmol L-1. The fluorescent Hg(II)-IIP was successfully employed for the sensing of the mercury from real water sample
Template and target information: mercury ion, Hg(II)
Author keywords: ion imprinted polymer, fluorescent sensing, mercury, Coumarin monomer

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