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Abstract: 2,4,6-Tribromophenol has been used as flame retardant and is a synthetic intermediate of the most important brominated flame retardants produced. In this work, a novel electrochemical sensor for determining 2,4,6-tribromophenol was fabricated by surface molecular imprinting technology, in which core-shell nanoparticles modified with (3-chloropropyl)trimethoxysilan and polyethylenimine were used as functional monomer, and 2,4,6-tribromophenol as template, ethylene glycol dimethacrylate as cross-linker. The electrochemical behavior the modified electrodes was investigated by electrochemical impedance spectroscopy and differential pulse voltammetry. The results showed that the imprinted electrode was significantly different from the non-imprinted electrode. The imprinted electrode had ascendant selective recognition ability, exhibited a low detection limit (1.51 x 10-8mol/dm3) and good repeatability (RSD is 4.35 % for 5 times) for the detection of 2,4,6-tribromophenol
Template and target information: 2,4,6,-tribromophenol
Author keywords: 2,4,6-Tribromophenol, electrochemistry, molecular imprinting, nanostructures, sensors