Magnetic Molecularly Imprinted Polymer Particles Based Micro-Solid Phase Extraction for the Determination of 4-Nitrophenol in Lake Water
| Autor: | Wenwu Yang, Imran Muhammad, Aziguli Yigaimu, Muyasier Wubulikasimu, Sergey A. Piletsky, Turghun Muhammad |
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| Rok vydání: | 2019 |
| Předmět: |
Sorbent
Materials science Polymers and Plastics General Chemical Engineering Organic Chemistry Extraction (chemistry) Molecularly imprinted polymer 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Adsorption Chemical engineering Polymerization Phase (matter) Materials Chemistry Magnetic nanoparticles Solid phase extraction 0210 nano-technology |
| Zdroj: | Macromolecular Research. 27:1089-1094 |
| ISSN: | 2092-7673 1598-5032 |
| DOI: | 10.1007/s13233-019-7151-z |
| Popis: | In this work, magnetic molecularly imprinted polymers (MMIPs) were prepared by the method of co-precipitation polymerization on the surface of vinyl-modified silica magnetic particles. Here, 4-nitrophenol (4-NP) was used as a template and vinylimidazole as a functional monomer. The structural features and morphology of MMIPs were characterized by SEM, FT-IR, TEM and XRD techniques. The results showed that the structures of MMIPs have a layer of silica and MIPs on the surface of the Fe3O4 particles, and they could be rapidly separated from the solution using a magnet. MMIPs possess higher adsorption capacity and excellent selectivity towards template (4-NP) than other structural analogues. And it is found to have good imprinting effect. MMIPs were used as micro-solid phase extraction sorbent for selective separation of 4-NP in lake water sample with high recoveries (90.63–95.63%) and low relative standard deviation values (RSD ≤ 3.2%, n = 3). |
| Databáze: | OpenAIRE |
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