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
作者： Zhang, Di 1 ; Duan, Ran 1 ; Zhou, Xiaohua 1 ; Ma, Zhiwei 2 ; Shi, Jiacheng 1 ; Chen, He 1 ; Guo, Jie 1 ; Li, Man 1 ; Wang, Tieliang 1 ; Wu, Xujin 1 ;
作者机构： 1.Henan Acad Agr Sci, Inst Qual & Safety Agroprod, Henan Prov Key Lab Qual Safety & Proc Agroprod, Zhengzhou 450002, Peoples R China
2.Henan Univ Anim Husb & Econ, Fac Sci, Zhengzhou 450046, Peoples R China
3.Zhengzhou Univ, Henan Inst Adv Technol, Zhengzhou 450003, Peoples R China
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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