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开发和应用一个坚固的基于 imine 的共价有机框架,用于在环境水中动棒吸附式提取雌激素

Jianing Sun¹, Xixi Lian¹, Lianzhi Wang¹

¹School of Chemistry and Environmental Engineering, Hubei Minzu University, Enshi 445000, China.

Molecules (Basel, Switzerland)

|December 17, 2024

概括

一种新型的共价有机框架 (COF) 通过杆吸附提取 (SBSE) 从水样中有效提取四种雌激素. 这种方法为环境监测提供了敏感的检测.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
分析化学分析化学

背景情况:

雌激素化合物是环境污染物,需要敏感的检测方法.
共价有机框架 (COF) 显示出作为先进吸附材料的潜力.
棒吸附提取 (SBSE) 是一种有效的样品预缩技术.

研究的目的:

为了合成和描述一种新的以 imine 为基础的 COF 材料 (TAPB-DHT-COF).
开发和优化SBSE方法来确定水中的四种雌激素.
评估TAPB-DHT-COF对雌激素提取和分析的性能.

主要方法:

使用2,5-二基甲 (DHT) 和1,3,5-三4-氨基) (TAPB) 合成TAPB-DHT-COF.
棒吸附提取 (SBSE) 用于预先缩雌激素 (E1),β-雌激醇 (E2),六醇 (HES) 和梅斯特兰醇 (MeEE2).
使用高性能液态染色体二极管阵列探测器 (HPLC-DAD) 分析提取的分析物.

主要成果:

在SBSE应用中,TAPB-DHT-COF表现出良好的化学稳定性.
通过调查pH值,离子强度,提取时间和脱溶剂来确定最佳的SBSE条件.
雌激素的检测极限 (LODs) 达到0.06至0.15μg/L,富化系数 (EF) 为3949.

结论:

开发的基于TAPB-DHT-COF的SBSE-HPLC-DAD方法适用于环境水样中的敏感雌激素测定.
这种COF材料为分析新出现的污染物提供了一个有希望的替代方案.

关键词:

协价有机框架协价有机框架环境水样环境水样雌激素是一种雌激素.高性能液体色谱学高性能液体色谱学调棒吸附式提取吸附式提取

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