Department of Chemistry, College of Science, Hebei Agricultural University, Baoding, 071001, China.
College of Landscape and Travel, Hebei Agricultural University, Baoding, 071001, China.
Mikrochim Acta. 2017 Dec 5;185(1):19. doi: 10.1007/s00604-017-2593-5.
A magnetic mesoporous poly(melamine-formaldehyde) composite (FeO-mPMF) was prepared via grafting poly(melamine-formaldehyde) onto the surface of amino-functionalized magnetite (FeO) nanoparticles. The material was characterized by scanning electron micrography, transmission electron microscopy, X-ray diffraction, Fourier transform-infrared spectroscopy, nitrogen adsorption-desorption isotherms, and thermogravimetric analysis. It has a large surface area, a typical mesoporous structure, and a high thermal stability. It was employed as a magnetic sorbent for the solid phase extraction of the following endocrine disrupting chemicals (EDCs): Bisphenol A, 4-tert-butylphenol, 4-tert-octylphenol and nonylphenol. The EDCs were then quantified by HPLC. Under the optimized conditions, the response to the EDCs is linear in the range of 0.5-100 ng·mL, and the limits of detection are 0.02-0.1 ng·mL. The high adsorption capability of the FeO-mPMF is mainly attributed to multiple interactions including π-stacking, hydrogen bonding, and hydrophobic interactions. The method was applied to the extraction of EDCs from spiked river water and bottled juice samples. The results demonstrated that the FeO-mPMF is an efficient adsorbent for the extraction of organic compounds with large conjugated π-system, plenty of hydrogen-bonding sites, and strong hydrophobicity. Graphical abstract A magnetic mesoporous polymelamine-formaldehyde composite (FeO-mPMF) was prepared and employed as a magnetic sorbent for the solid phase extraction of endocrine disrupting chemicals from river water and bottled juice samples prior to high-performance liquid chromatographic analysis.
一种磁性介孔聚（三聚氰胺-甲醛）复合材料（FeO-mPMF）是通过将聚（三聚氰胺-甲醛）接枝到氨基功能化的磁铁矿（FeO）纳米粒子表面制备的。该材料通过扫描电子显微镜、透射电子显微镜、X 射线衍射、傅里叶变换红外光谱、氮气吸附-脱附等温线和热重分析进行了表征。它具有大的表面积、典型的介孔结构和高的热稳定性。它被用作磁性吸附剂，用于固相萃取以下内分泌干扰物（EDCs）：双酚 A、4-叔丁基苯酚、4-叔辛基苯酚和壬基酚。然后通过高效液相色谱法对 EDCs 进行定量。在优化条件下，EDCs 的响应在 0.5-100ng·mL 范围内呈线性，检测限为 0.02-0.1ng·mL。FeO-mPMF 的高吸附能力主要归因于多种相互作用，包括π-堆积、氢键和疏水相互作用。该方法应用于从受污染河水和瓶装果汁样品中萃取 EDCs。结果表明，FeO-mPMF 是一种从河水和瓶装果汁样品中萃取具有大共轭π体系、丰富氢键和强疏水性的有机化合物的有效吸附剂。
