Li, Xue Wang, Meng-Yao Wang, Yu Yang, Wen-Zhi Yang, Cheng-Xiong
Published in
Journal of chromatography. A
Efficient enrichment of trace zearalenone (ZEN) from the complex traditional Chinese medicine (TCM) samples is quite difficult, but of great significance for TCM quality control. Herein, we reported a novel magnetic solid phase extraction (MSPE) strategy for ZEN enrichment using the amino- and hydroxyl dual-functionalized magnetic microporous organ...
Sun, Yangkun Kuang, Jingjing Cheng, Yongzhe Lin, Chuhui Zhang, Hongyang Zhang, Min Ning, Fanghong Hu, Ping
Published in
Journal of chromatography. A
Long-term intake of animal-derived foods with excessive fluoroquinolones (FQs) will cause damage to human health, so it is critical to establish a feasible approach for sensitive and rapid monitoring of FQs residues. In this study, a new cyclodextrin modified magnetic metal-organic frameworks (Fe3O4@UiO-66-CD) was successfully synthesized by amidat...
Hu, Haoyun Feng, Wenjuan Shi, Rui Pan, Hong Liu, Cheng Ruan, Guihua Huang, Yipeng
Published in
Journal of chromatography. A
Here, imine-linked covalent organic frameworks coated Fe3O4 microspheres were fabricated and employed as the self-template to prepare magnetic porous carbon material. The magnetic solid phase extraction (MSPE) performance of such magnetic covalent organic frameworks derived porous carbons (CMCOFs) were studied for the first time, and the improved M...
Song, Yang Yang, Minli Zhang, Feng Xu, Meixia Feng, Xuesong
Published in
Food chemistry
A novel Zn@MGeo sorbent was easily constructed and can bind with FQs through the synergistic effect of electrostatic interaction and coordination. With the Zn@MGeo as sorbent, a MSPE-UHPLC-MS/MS method was established for simultaneous detection of FQs in complex matrices. The whole extraction process could be completed using 6.0 mg sorbent within 1...
Kumar, Sandeep Bhogal, Shikha Malik, Ashok Kumar Aulakh, Jatinder Singh
Published in
Environmental science and pollution research international
A new method is developed for the simultaneous detection and extraction of parabens, including methyl paraben (MP), ethyl paraben (EP), propyl paraben (PP), and butyl paraben (BP), based on magnetic graphene oxide carbon dot nanocomposites (Fe3O4@GO@CD). Fe3O4@GO@CD has been synthesized using one pot hydrothermal method by intercalating iron oxide ...
Gao, Jingnan Ouyang, Jinya Shen, Jiwei Wei, Yinmao Wang, Chaozhan
Published in
Journal of chromatography. A
Herein, we prepared a carboxyl functionalized magnetic covalent organic framework (Fe3O4@iCOF-COOH) by combining multivariate synthetic strategy with post-synthetic modification. It was used as an adsorbent for magnetic solid phase extraction (MSPE) of six fluoroquinolones (FQs), and showed good absorption performance at neutral pH. Carboxyl groups...
Vidal, Daniel Ferreira Silva, Camilla Fonseca Borges, Marcella Matos Cordeiro Nascimento, Clebio Soares Jr Borges, Keyller Bastos
Published in
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences
Through density functional theory calculations was studied theoretically the formation process of a magnetic and mesoporous molecularly imprinted polymer for ractopamine (RAC), evaluating the molecular electrostatic potential map, functional monomers, functional monomer / template stoichiometry and crosslink agents. The results revealed that the be...
Özdemir, Sadin Serkan Yalçın, M Kılınç, Ersin Soylak, Mustafa
Published in
Food chemistry
Due to increasing industrialization and overpopulation, the amount of toxic metals is increasing in the environment, including air, soil, water, and food. Solid phase extraction is an efficient and ideal technique to preconcentrate the toxic metals before their measurements by analytical instruments. Russula brevipes was immobilized on γ-Fe2O3 magn...
Wang, Huiqi Han, Jingjing Li, Zhanfeng Wang, Zonghua
Published in
Journal of hazardous materials
Toluene and xylene are volatile organic compounds, and long-term exposure to toluene and xylene may cause brain structure and nervous system damage. To evaluate exposure to toluene and xylene in the environment, it is usually possible to monitor their metabolites in organisms, hippuric acid (HA) and methylhippuric acid (MHA). In this work, we desig...
Zhai, Yixin Bao, Yue Ning, Tao Chen, Pin Di, Siyuan Zhu, Shukui
Published in
Journal of chromatography. A
A novel 4 + 2 covalent magnetic organic framework (COF) with core-shell structure was synthesized for the first time with N, N, N', N'-Tetrakis (4-aminophenyl)-1, 4- benzenediamine (TPDA) and 2, 6-Pyridinedicarboxaldehyde (PCBA) at room temperature. The synthesized magnetic TPDA-PCBA-COF has a large specific surface area and superparamagnetism, whi...
