Reference type: Journal
Authors: Arias PG, Martínez-Pérez-Cejuela H, Combès A, Pichon V, Pereira E, Herrero-Martínez JM, Bravo M
Article Title: Selective solid-phase extraction of organophosphorus pesticides and their oxon-derivatives from water samples using molecularly imprinted polymer followed by high-performance liquid chromatography with UV detection.
Publication date: 2020
Journal: Journal of Chromatography A
Volume: 1626
Article Number: 461346.
DOI: 10.1016/j.chroma.2020.461346
Alternative URL: https://www.sciencedirect.com/science/article/pii/S0021967320306245

Abstract: A molecularly imprinted polymer was synthesized and characterized to be used as solid-phase extraction sorbent for simultaneous chlorpyrifos and diazinon and their oxon derivatives. Several imprinted polymers were prepared and evaluated in a retention study of these analytes compared with a non-printed polymer. Several parameters affecting the extraction of imprinted polymer such as washing solvent, composition and volume of the eluting solvent and sample volume, were also investigated. Under the optimum conditions, the developed method provided satisfactory limits of detection ranging between 0.07 μg L-1 to 0.12 μg L-1 and the material showed an excellent reusability (> 50 reuses). The method was applied to the extraction and preconcentration of these analytes in water samples. The average recoveries ranged from 79 ± 6 to 104 ± 3 %
Template and target information: chlorpyrifos, diazinon, oxon derivatives
Author keywords: molecularly imprinted polymer, Environmental water samples, pollutants, SPE, organophosphorus pesticides, Pesticides-oxon