SiO2 templates-derived hierarchical porous COFs sample pretreatment tool for non-targeted analysis of chemicals in foods

SiO2 templates-derived hierarchical porous COFs sample pretreatment tool for non-targeted analysis of chemicals in foods

[Display omitted] •A simple method is developed for the facile preparation of highly hierarchical COFs.•HCOFs have interconnected channels and thus fully exposed interior pores.•HCOFs are demonstrated to work well for ultrafast (in 3 s) sample pretreatment.•HCOFs are successfully used for the non-ta...

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Veröffentlicht in:Journal of hazardous materials 2022-06, Vol.432, p.128705-128705, Article 128705
Hauptverfasser: Li, Wei, Jiang, Hong-Xin, Cui, Meng-Fan, Wang, Rui, Tang, An-Na, Kong, De-Ming
Format: Artikel
Sprache:eng
Schlagworte:
Food safety
Hierarchical covalent organic frameworks
Pesticide
Sample pretreatment
SiO2 nanoparticles
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Zusammenfassung:[Display omitted] •A simple method is developed for the facile preparation of highly hierarchical COFs.•HCOFs have interconnected channels and thus fully exposed interior pores.•HCOFs are demonstrated to work well for ultrafast (in 3 s) sample pretreatment.•HCOFs are successfully used for the non-targeted analysis of 90 chemical hazards from 6 foods.•This work pave a new way to remodel COFs and improve the applications of COFs in many fields.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2022.128705