相关实验视频

Updated: Jul 9, 2025

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

Published on: July 10, 2017

机械化学合成离子共价有机框架/棉花复合材料用于海鲜中多米酸的管管尖固体相提取

Zhiyong Wang¹, Shiye Xie¹, Wenmin Zhang²

¹Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Province Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China.

|December 4, 2023

概括

离子共价有机框架@cotton (iCOF@cotton) 被合成用于管管尖固体相提取 (PT-SPE). 这种新型吸附剂在海洋样本中高效地检测到高灵敏度和速度的多米酸.

科学领域:

材料科学材料科学材料科学
分析化学分析化学
环境科学环境科学

背景情况:

管管尖固体相提取 (PT-SPE) 是一种有价值的小型化技术,用于样品预处理.
开发高效和快速的吸附剂对于提高PT-SPE性能至关重要.
多米酸 (DA) 是一种有害的藻类毒素,需要敏感的检测方法.

研究的目的:

合成和表征离子共价有机框架@棉 (iCOF@棉) 作为新型PT-SPE吸附剂.
开发一种使用iCOF@cotton.com在海洋样本中检测多米酸 (DA) 的灵敏和高效方法.
评估开发方法的分析性能和适用性.

主要方法:

通过机械化学研磨在30分钟内轻松合成iCOF@棉花.
在PT-SPE中使用iCOF@cotton作为吸附剂进行样品预处理.
结合PT-SPE与高性能液体染色学并联质谱 (HPLC-MS/MS) 进行DA检测.

主要成果:

合成的iCOF@cotton表现出高特异面积,合适的孔隙结构和阴离子电荷.
基于iCOF@棉的PT-SPE降低了反压,加速了提取时间.
该HPLC-MS/MS方法显示出优异的线性 (10-1000 pg mL−1),低的LOD (5 pg mL−1) 和高精度 (RSDs ≤6.4%).
在海洋样本中成功检测到DA的微量含量,并得到了令人满意的恢复 (85.7%-107.2%).

结论:

易于合成的iCOF@cotton是PT-SPE应用中的一个有前途的吸附材料.
开发的方法提供了一种高效和灵敏的方法,用于在海洋环境中检测DA.
iCOF@cotton显示出在分析化学中快速有效的样品预处理的巨大潜力.

关键词:

棉花棉花棉花棉花共价有机框架是共价有机框架.多米酸是多米酸的一种.机械化学合成机械化学合成管管尖的固体相提取方法

更多相关视频

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

Author Spotlight: Exploring Self-Assembled MOF-Polymer Composites

Author Spotlight: Exploring Self-Assembled MOF-Polymer Composites

Published on: June 14, 2024

相关概念视频

Extraction: Advanced Methods

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...