A naphthimide based fluorescent probe for the detection of thiophenols and its application in actual water and food

文献类型： 外文期刊

第一作者： Zhang, Di

作者： Zhang, Di;Duan, Ran;Zhou, Xiaohua;Shi, Jiacheng;Chen, He;Guo, Jie;Li, Man;Wang, Tieliang;Wu, Xujin;Ma, Zhiwei;Shi, Jiacheng

作者机构：

关键词： Thiophenol; Fluorescence probe; Off-on; Water; Food

期刊名称：JOURNAL OF MOLECULAR STRUCTURE （ 影响因子：4.7； 五年影响因子：4.0 ）

ISSN： 0022-2860

年卷期： 2025 年 1322 卷

页码：

收录情况： SCI

摘要： Thiophenol (PhSH) and its derivatives are widely employed as common industrial raw materials, while they also pose high toxicity for animals and aquatic organisms. Herein, a novel fluorescent probe P1 was constructed, based on photo-induced electron transfer (PET) mechanism, using naphthimide as the fluorophore and 7-nitrobenzoxadiazole as the recognizing group. Probe P1 exhibited an "Off-On" fluorescence recognition response to PhSH by nucleophilic substitution reaction. The probe displayed advantageous properties for the recognition of PhSH, including a chromogenic response, high selectivity, fast response (< 90 s), and a large Stokes shift (150 nm). In addition, probe P1 exhibited a good linear response to PhSH within the range of 0-9 mu M, and the limit of detection (LOD) is 21 nM. Furthermore, probe P1 has been successfully applied for the efficient and rapid PhSH detection in environmental water and actual food samples.

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