College of Science, Hebei Agricultural University, Baoding 071001, China.
College of Science, Hebei Agricultural University, Baoding 071001, China.
J Chromatogr A. 2023 Sep 13;1706:464271. doi: 10.1016/j.chroma.2023.464271. Epub 2023 Aug 2.
Amine-functionalized porous organic polymers (EDA-POP-PC and EDA-POP-BT) were prepared by post-modification of POP-PC and POP-BT with ethylenediamine (EDA) for the first time. The POP-PC and POP-BT were obtained through Friedel-Crafts acylation reaction of potassium tetraphenylborate with p-phthaloyl chloride (PC) and 1,3,5-benzenetricarbonyl trichloride (BT), respectively. The EDA-POPs exhibited superior adsorption capacity for phenolic endocrine disrupting chemicals (EDCs). After magnetically functionalization, the obtained M-EDA-POP-PC was employed as a magnetic adsorbent for enrichment of phenolic EDCs from real samples prior to high performance liquid chromatography-ultraviolet detection. The current strategy showed low detection limits (S/N = 3) of 0.02-0.07, 0.04-0.08 and 0.04-0.10 ng mL for river water, white peach juice and lychee juice, respectively. The method recoveries were 81.7%-115% with relative standard deviations below 8.6%. The proposed strategy showed good practicality for sensitive determination of phenolic EDCs in real samples.
首次通过乙二胺（EDA）对多孔有机聚合物（POP-PC 和 POP-BT）进行后修饰，制备了胺功能化多孔有机聚合物（EDA-POP-PC 和 EDA-POP-BT）。POP-PC 和 POP-BT 分别通过四苯硼酸钾与对苯二甲酰氯（PC）和 1,3,5-均苯三羰基三氯（BT）的 Friedel-Crafts 酰化反应得到。EDA-POP 对酚类内分泌干扰物（EDCs）表现出优异的吸附能力。经过磁性功能化后，所得的 M-EDA-POP-PC 被用作磁性吸附剂，用于从实际样品中富集酚类 EDCs，然后进行高效液相色谱-紫外检测。该方法在河水中、白桃汁和荔枝汁中的检测限（S/N=3）分别为 0.02-0.07、0.04-0.08 和 0.04-0.10ngmL，回收率为 81.7%-115%，相对标准偏差低于 8.6%。该策略在实际样品中酚类 EDCs 的灵敏检测中表现出良好的实用性。
