基于聚合物的亚硫酸氢根比率荧光探针及其在食品检测中的应用

doi:10.11896/cldb.21050279

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Abstract Aconjugated polymer (PT3) was designed and synthesized to act as a ratiometric fluorescent probe for HSO₃^-. Based on the nucleophilic addition reaction between bisulfite and aldehyde group in PT3, it displayed efficient fluorogenic signaling with emission shift of about 120 nm. Moreover, the detection process was accompanied with the visible fluorescent color change from orange to blue. The fluorescent probe PT3 can quantitatively detect HSO₃^- with high selectivity, sensitivity and fast response time (4 min), with a limit detection of 1.6×10^-7 mol/L. The fluorescence intensity ratio (I₅₀₈/I₆₂₆) was linear with the concentration of HSO₃^- in the range of 0—30 μmol/L. Above all, the probe PT3 was successfully applied to determine the concentration of HSO₃^- in food samples with ratiometric fluorescent methods.

Key words： conjugated polymer fluorescent probe ratiometric fluorescence bisulfite food detection

Published: 10 October 2022 Online: 2022-10-12

CLC number:

O622.4

Fund:Hubei Key Laboratory of Low Dimensional Optoelectronic Material and Devices (HLOM222004), the Xiangyang Science and Technology Project (2020YL03) and the Innovation Research Team Project of Hubei University of Arts and Science (2020kypytd001)

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	Articles by authors
	GONG Mengyun
	LI Shuang
	WANG Song
	LI Wangnan
	CHENG Xiaohong

Cite this article:

GONG Mengyun,LI Shuang,WANG Song, et al. Polymer-based Fluorescent Probe for Bisulfite: Good Ratiometric Response and Application in Food Sample[J]. Materials Reports, 2022, 36(19): 21050279-4.

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http://www.mater-rep.com/EN/10.11896/cldb.21050279 OR http://www.mater-rep.com/EN/Y2022/V36/I19/21050279

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