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空洞多MOF衍生吸附剂,用于有效地从水中提取几种典型的内分泌干扰化合物的磁性固体相提取

Jia Gao¹, He Zhang¹, Chongsheng Zhou²

¹State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.

|June 1, 2024

概括

一种新的磁性材料有效地从水中提取微量内分泌干扰化合物 (EDC),如双和. 这种方法为环境监测提供了高灵敏度和可重复使用性.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
分析化学分析化学

背景情况:

干扰内分泌的化合物 (EDC),包括双和,在水生环境中普遍存在.
它们的存在对水生生物和人类健康构成重大风险,需要敏感的检测方法.

研究的目的:

为微量EDC开发一种高效的磁性固相提取 (MSPE) 吸附剂.
创建一种预处理方法,用于精确测量水中的双和.

主要方法:

合成一种由ZIF-67@ZIF-8.衍生的磁性等级碳材料 (CoZn-MHC).
优化MSPE参数,包括吸附剂剂量,提取时间,pH值,离子强度和脱附溶剂.
从水样中提取EDC的优化MSPE方法的应用.

主要成果:

CoZn-MHC吸附剂显示出高表面积 (213.80 m2·g-1) 和磁化 (63.2 emu·g-1).
开发的MSPE方法实现了极好的线性 (R2 ≥0.990),低检测极限 (0.7935.37 ng·L-1),以及良好的重复使用性 (RSD ≤4.67%).
该方法显示了自然水样中的高回收率 (74.8%107%) 和对矩阵干扰的抗性.

结论:

新的MOF衍生磁性碳材料是EDC的MSPE的高效吸附剂.
这种方法提供了一种灵敏,可靠和可重复使用的方法,用于检测环境水中的微量双和.
合成策略为开发用于环境污染物分析的先进吸附剂提供了有价值的框架.

关键词:

类子类子类子双醇是一种双醇.磁性MOF导数的导数是什么磁性固体相提取 (MSPE) 是一种有孔的碳是多孔的碳.

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