Abstract
The theoretical screening and design of green solvents to reduce organic solvents and to develop green and efficient sample pretreatment methods have attracted extensive attention. Here, benzimidazoles (BZDs) with potential reproductive toxicity were used as target compounds, and amino acid ionic liquids (AAILs) were designed and selected via a theoretical calculation. With the functionalized AAIL as monomers, and POSS as the crosslinking agent, novel specific magnetic nanoparticles (Fe3O4@SiO2@MAPs@AAIL-POSS) were prepared and used to develop the magnetic dispersive solid-phase extraction (MDSPE) of trace BZDs from fruit juice and human serum. In the evaluation of the method, Fe3O4@SiO2@MAPs@AAIL-POSS showed specific adsorption, recyclable ability, high adsorption efficiency, a good recovery rate, and a low coefficient of variation. In addition, the adsorption behavior of Fe3O4@SiO2@MAPs@AAIL-POSS on BZDs was verified by investigating the kinetic and thermodynamic of the adsorption process. The study design provides ideas for green rapid detection methods of other food pollutants.
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