Covalent organic framework-based monolithic column with hydrophilic and π-π stacking interaction for efficient in-tube solid-phase microextraction of synthetic phenolic antioxidants

Jiabin Wang,Yanjun Hao,Bichen Ni,Jian Sun,Xiangzong Wu,Xucong Lin

MICROCHEMICAL JOURNAL（2023）

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摘要

•COF-based monolith with hydrophilic interaction was first proposed.•Successful embedment of COF into UF monolith was confirmed.•This COF-based monolith was applied as sorbent for in-tube SPME of SPAs.•Efficient SPME was achieved by the combination of HI and π-π stacking interaction.•In-tube SPME-HPLC method with COF-based monolith was proposed for analysis of SPAs.

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关键词

Covalent organic framework,Hydrophilic interaction,In-tube solid-phase microextraction,π-π Stacking interaction,Monolithic column,Synthetic phenolic antioxidants

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