College of Science, Hebei Agricultural University, Baoding 071001, Hebei, China.
School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhang, Hebei 050018, China.
Food Chem. 2024 Aug 15;449:139270. doi: 10.1016/j.foodchem.2024.139270. Epub 2024 Apr 10.
In this paper, series of ionic polymers were synthesized by crosslinking alkyl quaternary ammonium salts with 1,4-bis(chloromethyl)benzene. Among them, hyper-crosslinked polymer fabricated with dodecyl dimethyl benzyl ammonium chloride (HCP-DD) as monomer delivered superior adsorption performance for endocrine disrupting chemicals (EDCs). The adsorption mechanism mainly includes π-π stacking, hydrophobic and electrostatic interaction. With HCP-DD as solid phase extraction sorbent, a high performance liquid chromatography-diode array detection method was developed for the detection of four phenolic EDCs in water and fish samples. The detection limits of the method were 0.005-0.02 ng mL for water samples and 3-30 ng g for fish samples. The recoveries of EDCs in water samples and fish samples were 80-119% and 81.3-117% (relative standard deviations <4.4%), respectively. The study not only provides a route for preparation ionic porous polymers, but also highlights the applications of ionic polymers as efficient adsorbent to enrich organic pollutants.
在本文中，通过 1,4-双（氯甲基）苯交联烷基季铵盐合成了一系列离子聚合物。其中，以十二烷基二甲基苄基氯化铵（HCP-DD）为单体制备的超交联聚合物对内分泌干扰物（EDCs）表现出优异的吸附性能。吸附机制主要包括π-π堆积、疏水和静电相互作用。以 HCP-DD 作为固相萃取吸附剂，建立了高效液相色谱-二极管阵列检测法测定水中和鱼样中四种酚类 EDCs 的方法。该方法在水中的检测限为 0.005-0.02ng mL，在鱼样中的检测限为 3-30ng g。EDCs 在水样和鱼样中的回收率分别为 80-119%和 81.3-117%（相对标准偏差<4.4%）。该研究不仅为制备离子型多孔聚合物提供了一条途径，而且突出了离子聚合物作为高效吸附剂富集有机污染物的应用。
