Article
Chemistry, Analytical
Huixiao Duo, Jiayuan Yue, Yujian Yin, Xiaoyu Xu, Liyun Wang, Lulu Yu, Xunjia Qian, Jiejia Li, Qing Zhu
Summary: Magnetic carbon nanoparticles composed of Co, CoO, and graphitic carbon were prepared via direct carbonization of Co-MOF without the need for additional carbon precursors or magnetic particles. The resulting material, Co/CoO@C, exhibited high mesoporous architecture, a large number of adsorption sites, good graphitization degree, and strong magnetic response. It was employed as an adsorbent for magnetic solid-phase extraction of phenylurea herbicides and showed excellent adsorption capability, fast extraction times, low limits of detection, good linearity, and precision.
MICROCHEMICAL JOURNAL
(2023)
Review
Chemistry, Inorganic & Nuclear
Anna A. Kotova, Didier Thiebaut, Jerome Vial, Antoine Tissot, Christian Serre
Summary: Analytical chemistry is crucial for separating complex mixtures, and Metal-organic frameworks (MOFs) are promising porous hybrid solids with unique physico-chemical properties, which can be applied in chromatography and solid-phase extraction to address challenges in these fields.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Biochemical Research Methods
Liying Guo, Jiajia Liu, Jinqiu Li, Lin Hao, Weihua Liu, Chun Wang, Qiuhua Wu, Zhi Wang
Summary: In this study, a core-shell structured magnetic covalent organic framework named M-TpDAB was synthesized and used for preconcentrating phenylurea herbicides before HPLC analysis. The method showed good linearity and detection limits for water and tea drink samples, with satisfactory recoveries. This approach provides a promising alternative for analyzing trace levels of phenylurea herbicides in water samples.
JOURNAL OF CHROMATOGRAPHY A
(2021)
Article
Chemistry, Analytical
Qingying Wang, Lianfang Chen, Xiaoyan Cui, Jie Zhang, Yaohui Wang, Xiupei Yang
Summary: A covalent organic framework (COF) was grown on a magnetic metal-organic framework (MOF) for efficient extraction of bisphenols (BPs) using magnetic solid-phase extraction (MSPE) and high-performance liquid chromatography (HPLC). The method showed low detection limit, wide linear range, and high precision. The proposed method was applied to determine bisphenol A in actual milk samples and showed promising results.
Article
Chemistry, Analytical
Liling Wang, Yanbin Wang, Yuchuan Qin, Yifeng Zhou
Summary: In this study, a novel ionic liquid covalent organic framework (IL@COF) was prepared for efficient extraction of six commonly used herbicides from water samples. The mesoporous material exhibited rapid adsorption performance and stable physical and chemical properties. High performance liquid chromatography (HPLC) analysis showed wide linearities and low limits of detection for the six analytes. The IL@COF adsorbent can be reused multiple times, making it a promising technique for simultaneous detection of pesticides in environmental water samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Applied
Yue-Hong Pang, Zhi-Yang Lv, Ji-Cheng Sun, Cheng Yang, Xiao-Fang Shen
Summary: The study developed a method for trace determination of tetracyclines in honey using MOFs for d-SPE. By compounding MIL-101 (Cr), MIL-100 (Fe) and MIL-53 (Al) at a ratio of 7:1:2, effective adsorption-extraction was achieved.
Article
Engineering, Environmental
Jiangyi Wu, Siyu Luo, Xiaojia Huang
Summary: Efficient co-extraction of phenylurea and sulfonylurea herbicides was achieved using two novel monolith-based electrodes as adsorbents in electric field assisted solid-phase microextraction (EFA-SPME). The co-extraction performance was improved by applying electric field, and sensitive and reliable method for simultaneous monitoring of trace phenylurea and sulfonylurea herbicides in environmental water and soil samples was developed with HPLC analysis technique.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Wen Ma, Jun Li, Xianjiang Li, Huwei Liu
Summary: A series of metal-organic frameworks were synthesized and used as adsorbents for five diamide insecticides, with MIL-101-NH2 showing superior performance. A sensitive method combining dispersive solid phase extraction with liquid chromatography tandem mass spectrometry was developed, achieving high enrichment efficiency by investigating key parameters. The proposed method demonstrated ultrahigh sensitivity and wide linearity for the analysis of diamide insecticides.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Wen Ma, Bingxin Yang, Jun Li, Xianjiang Li
Summary: Four functional metal-organic frameworks were synthesized and used as adsorbents for simultaneous enrichment of nine neonicotinoids. Among them, amino-functional MIL-101-NH2 showed the best performance due to high surface area and specific interaction with analytes. A simple and efficient method was developed for trace analysis of neonicotinoids in environmental samples.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Analytical
Pattamaporn Klongklaew, Opas Bunkoed
Summary: A polydopamine-coated microporous composite of metal-organic frameworks and magnetite nanoparticles embedded in carrageenan hydrogel beads was successfully utilized for magnetic solid-phase extraction of parabens with high efficiency and broad linear range. The composite adsorbent showed good accuracy, stability, and reusability when extracting parabens in real samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Biochemical Research Methods
Zhikai Hong, Yingjiao Dong, Ruijie Wang, Yao Chen, Guanhua Wang
Summary: TAPT-AN-COF, an imine-based covalent organic framework synthesized by solvothermal method, exhibited good stability and high specific surface area. It was successfully employed as a solid-phase extraction adsorbent for the separation and enrichment of NDZs in milk and meat. The method based on HPLC-UVD showed satisfactory performance for the determination of NDZs in food samples.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Review
Chemistry, Analytical
Igor E. Uflyand, Vladimir A. Zhinzhilo, Victoria O. Nikolaevskaya, Boris Kharisov, Cesar M. Oliva Gonzalez, Oxana Kharissova
Summary: This review summarizes the recent applications of metal-organic frameworks (MOFs) in solid phase extraction (SPE) of organic dyes, focusing on the development of MOF performance enhancement strategies and their application in specific dye separation and real object analysis. Further research directions in using MOF in SPE of organic dyes are outlined for future exploration.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Cong Tian, Zhekuan Wu, Man He, Beibei Chen, Bin Hu
Summary: An amino-functionalized magnetic covalent organic framework composite has been prepared and applied for trace analysis of sulfonylurea herbicides. The method shows high extraction efficiency and good analytical performance, making it suitable for the detection of trace sulfonylurea herbicides in environmental samples.
JOURNAL OF SEPARATION SCIENCE
(2022)
Article
Biochemical Research Methods
Han Wang, Xiaoya Zhao, Jiawen Xu, Yinzhu Shang, Hui Wang, Peng Wang, Xitong He, Jie Tan
Summary: The study utilized IRMOF-3 coated SiO2/Fe3O4 as a sorbent for magnetic solid phase extraction, combined with high-performance liquid chromatography-tandem mass spectrometry to detect 10 quinolones. Optimal conditions for extraction were established and the method was successfully applied for analysis of water and fish samples.
JOURNAL OF CHROMATOGRAPHY A
(2021)
Article
Chemistry, Analytical
Xiao-Shuai Yang, Jie Zhao, Lu-Liang Wang, Yu-Shen Liu, Quan-Wen Liu, Xin-Yan Peng, Ping Wang
Summary: Covalent organic framework-decorated magnetic nanoparticles have been synthesized and used for the analysis of parabens in environmental water samples. The developed method showed good linearity, low limits of detection, and high recoveries, indicating the potential of magnetic-functionalized COFs in environmental contaminant determination.