Highly Sensitive Detection of Water in Organic Solvents Using Pyrene-Phenol-based Fluorescent Probe

文献类型： 外文期刊

第一作者： Liang, Jing

作者： Liang, Jing;Wang, Yan-Li;Jiang, Cui-Wen;Huang, Xiao-Chuan;Tang, Li;Li, Tao;Ya, Yu;Ning, De-Jiao;Xie, Li-Ping;Yan, Fei-Yan

作者机构：

关键词： Fluorescent probe; Pyrene-phenol; Differentiation of solvents; Detection of water content

期刊名称：CHINESE JOURNAL OF ANALYTICAL CHEMISTRY （ 影响因子：1.3； 五年影响因子：1.0 ）

ISSN： 0253-3820

年卷期： 2025 年 52 卷 6 期

页码：

收录情况： SCI

摘要： A pyrene-phenol-based fluorescent probe PyP which showed typical intramolecular charge transfer (ICT) and monomer-excimer activities was synthesized by using pyrene carboxaldehyde hydrazone and 4-tert-butyl-2,6-diformylphenol as the raw materials. The effects of solvents on PyP were studied, and the results showed that the color of protic polar solvents (Ethanol, N,N-dimethylformamide, methanol and H2O) were successfully identified. Based on the solvent polarity-regulated PyP monomer-excimer switching, the rapid and highly sensitive ratiometric probe, '' Turn-off '' and '' Turn-on '' multimodal probes were established for detection of trace water content in organic solvents (Dimethyl sulfoxide, N,N-dimethylformamide, ethanol and methanol), with detection limits (3 sigma/k) of 0.0021%, 0.046%, 0.062% and 0.024%. The method was successfully used to detect water content in dimethyl sulfoxide, N,N-dimethylformamide, ethanol and methanol commercial organic solvents, with recoveries ranging from 97.2% to 108.0%. The developed method showed good accuracy and stability, and had good application prospect.

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