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Reference type: Journal
Authors: Abrão LCC, Maia P, Figueiredo EC
Article Title: Determination of Tetracyclines by Solid-Phase Extraction with a Molecularly Imprinted Polymer and High-Performance Liquid Chromatography.
Publication date: 2014
Journal: Analytical Letters
Volume: 47
Issue: (13)
Page numbers: 2183-2194.
DOI: 10.1080/00032719.2014.900780

Abstract: Tetracyclines are widely used antibiotics classified as emerging pollutants and may lead to an increase in bacterial resistance in the environment. In order to determine these compounds at low concentrations, a water-compatible molecularly imprinted polymer was developed for solid-phase extraction followed by high-performance liquid chromatography analysis. The monomers 2-hydroxyethyl methacrylate and glycerol dimethacrylate were added 1 h after the start of the synthesis to provide hydroxyl groups on the polymer surface. This hydrophilic layer established hydrogen bonds with water, minimizing interferences of this solvent in the analyte-polymer complex, increasing analyte adsorption. The polymer was then used for solid-phase extraction to preconcentrate the tetracyclines. The method provided low limits of quantification (5 μg L-1), good linearity, precision, and accuracy for tetracyclines, with preconcentration factors of 14, 19, 29, and 41 for oxytetracycline, tetracycline, chlortetracycline, and doxycycline, respectively
Template and target information: tetracyclines, oxytetracycline, tetracycline, chlortetracycline, doxycycline
Author keywords: High-performance liquid chromatography (HPLC), Solid-Phase Extraction (SPE), Tetracyclines, water, Water-compatible molecularly imprinted polymer (MIP)

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