Design and application of ionic covalent organic frameworks

P Zhang, Z Wang, P Cheng, Y Chen, Z Zhang - Coordination Chemistry …, 2021 - Elsevier
Ionic covalent organic frameworks (iCOFs) are an emerging type of crystalline organic
polymers that consist of the ionic skeleton and corresponding counterions. As a joint …

Recent advances and applications of ionic covalent organic frameworks in food analysis

S Hou, M Zhang, Y Huo, X Chen, W Qian… - … of Chromatography A, 2024 - Elsevier
Ionic covalent organic frameworks with both crystallinity and charged sites have attracted
significant attention from the scientific community. The versatile textural structures, precisely …

Facile synthesis of magnetic sulfonated covalent organic framework composites for simultaneous dispersive solid-phase extraction and determination of β-agonists …

K Hu, Y Shi, W Zhu, J Cai, W Zhao, H Zeng, Z Zhang… - Food Chemistry, 2021 - Elsevier
In this work, an efficient method for the determination of β-agonists and fluoroquinolones
was established, based on a mixed-mode sorbent of magnetic sulfonated covalent organic …

Reusable electrochemical biosensing platform based on egg yolk antibody-labeled magnetic covalent organic framework for on-site detection of Escherichia coli in …

S Xiao, X Yang, J Wu, Q Liu, D Li, S Huang… - Sensors and Actuators B …, 2022 - Elsevier
Abstract Escherichia coli O157: H7 (E. coli) can proliferate and contaminate foods rapidly to
cause serious hazards to consumers. Thus, developing a rapid on-site detection assay for E …

Simultaneous extraction of diverse organic pollutants from environmental water using a magnetic covalent organic framework composite

K Hu, J Cheng, W Zhang, T Pang, X Wu, Z Zhang… - Analytica Chimica …, 2020 - Elsevier
Polycyclic aromatic hydrocarbons (PAHs), tetracyclines (TCs), and triphenylmethane dyes
(TDs) are common organic pollutants, which may threat the human health or natural …

A green-emitting fluorescent covalent organic framework nanostructure for visual sensing of folic acid

QL Wen, BC Wu, ZF Pu, RS Li, J Ling, Q Cao - Dyes and Pigments, 2023 - Elsevier
Most solid-state imine-linked covalent organic frameworks (COFs) are non-fluorescent due
to aggregation-caused quenching because of strong π-π interactions and rotationally …

Covalent organic framework in situ grown on the metal–organic framework as fiber coating for solid-phase microextraction of polycyclic aromatic hydrocarbons in tea

L Xu, W Hu, X Luo, J Zhang - Microchimica Acta, 2023 - Springer
Abstract A novel MIL-88-NH2@ COF composite was produced by in situ growth of covalent
organic framework (COF) on the metal–organic framework (MOF) surface. To obtain a …

Covalent organic frameworks in sample preparation

J González-Sálamo, G Jiménez-Skrzypek… - Molecules, 2020 - mdpi.com
Covalent organic frameworks (COFs) can be classified as emerging porous crystalline
polymers with extremely high porosity and surface area size, and good thermal stability …

A novel magnetic solid-phase extraction method for detection of 14 heterocyclic aromatic amines by UPLC-MS/MS in meat products

S Shan, Y Ma, C Sun, X Guo, H Zheng, X Xu, L Qin… - Food Chemistry, 2021 - Elsevier
The current study developed a cheap and effective method for the simultaneous extraction of
14 heterocyclic aromatic amines (HAAs) in food matrix. Core-shell Fe 3 O 4@ PDA …

Analysis of polycyclic aromatic hydrocarbon derivatives in environment

R Jin, G Liu, X Zhou, Z Zhang, B Lin, Y Liu, Z Qi… - TrAC Trends in …, 2023 - Elsevier
Polycyclic aromatic hydrocarbon (PAH) derivatives, such as nitro-PAHs, oxy-PAHs,
halogenated PAHs, and hydroxylated PAHs, are organic chemicals formed with or produced …