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缺少集群缺陷的UiO-66用于高效地提取和丰富酸氨杀虫剂

Xuejing Lou¹, Yingge Hao¹, Huina Zhou¹

¹Henan International Joint Laboratory of Medicinal Plants Utilization, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, Henan, China.

Journal of chromatography. A

|January 8, 2025

概括

有缺陷的金属有机框架 (MOFs) 从土壤中有效地提取酸氨杀虫剂 (BUs). 这种新型材料为环境监测提供了快速,灵敏和可重复使用的检测.

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:

金属有机框架 (MOF) 的缺陷增强了吸附和催化性能.
双金属MOF为特定应用提供可调节的特性.

研究的目的:

为环境分析合成和描述有缺陷的MOF.
开发一种方法来检测土壤样本中的微量酸氨杀虫剂 (BU).

主要方法:

制备双金属Zn/Zr-UiO-66并随后通过酸洗产生缺失的集群缺陷 (UiO-66-1/3).
在分散固相提取 (dSPE) 中使用UiO-66-1/3作为吸附剂.
将dSPE与高性能液态染色体二极管阵列探测器 (HPLC-DAD) 合起来,用于BU量化.

主要成果:

UiO-66-1/3 显示了快速吸附平衡 (3 分钟).
该方法实现了高的丰富系数 (202-325),低的检测极限 (0.005-0.04 ng·mL-1),以及广泛的线性范围 (0.02-200 ng·mL-1).
在16个重复使用周期后,吸附剂保持了>95%的回收率.

结论:

缺陷的UiO-66-1/3是一种高效且可重复使用的dSPE吸附剂.
开发的HPLC-DAD方法能够灵敏有效地检测土壤中的微量BU.
这项研究提供了一个有希望的新材料,用于对酸杀虫剂的环境监测.

关键词:

酸的杀虫剂酸的杀虫剂集群缺陷集群缺陷集群缺陷分散固体相提取 (dSPE) 是一种分散式固体相提取技术.金属有机框架 (MOFs) 是指金属有机框架.在UiO-66中使用.

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