Polymer⁃based Fluorescent Probe for Bisulfite: Good Ratiometric Response and Application in Food Sample

被引：0

作者：

Gong M. ^{[1
]}

Li S. ^{[2
]}

Wang S. ^{[1
]}

Li W. ^{[1
]}

Cheng X. ^{[1
]}

机构：

[1] Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Hubei, Xiangyang

[2] Hubei Institute of Aerospace Chemical Technology, Hubei, Xiangyang

来源：

Cailiao Daobao/Materials Reports | 2022年 / 36卷 / 19期

关键词：

bisulfite; conjugated polymer; fluorescent probe; food detection; ratiometric fluorescence;

D O I：

10.11896/cldb.21050279

中图分类号：

学科分类号：

摘要：

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. © 2022 Cailiao Daobaoshe/ Materials Review. All rights reserved.

引用

共 48 条

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