有机化学 ›› 2024, Vol. 44 ›› Issue (4): 1284-1292.DOI: 10.6023/cjoc202310014 上一篇    下一篇

研究论文

一种用于次氯酸根实时高灵敏度检测的络合物基荧光探针

程晓红a, 刘发龙b, 孙进博a, 张锐c,*()   

  1. a 湖北文理学院 低维光电材料与器件湖北省重点实验室 湖北襄阳 441053
    b 湖北航天化学技术研究所 湖北襄阳 441053
    c 湖北文理学院化学工程学院 湖北襄阳 441053
  • 收稿日期:2023-10-18 修回日期:2023-11-23 发布日期:2023-11-30
  • 基金资助:
    国家自然科学基金(21502047); 湖北省自然科学基金(2022CFB779)

An Ensemble-Based Fluorescent Probe for Real-Time and High Sensitive Detection of Hypochlorite

Xiaohong Chenga, Falong Liub, Jinbo Suna, Rui Zhangc()   

  1. a Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang, Hubei 441053
    b Hubei Institute of Aerospace Chemical Technology, Xiangyang, Hubei 441053
    c School of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei 441053
  • Received:2023-10-18 Revised:2023-11-23 Published:2023-11-30
  • Contact: E-mail: rzhangccnu@163.com
  • Supported by:
    National Natural Science Foundation of China(21502047); Natural Science Foundation of Hubei Province(2022CFB779)

报道了一个实时检测次氯酸根阴离子的荧光探针TS1. 首先, 铜离子的引入可与化合物TS1形成稳定的络合物TS1-Cu, 导致溶液荧光被极大地猝灭. 然后, 继续加入次氯酸根, 由于次氯酸根的强氧化性, 可诱导TS1中席夫碱发生水解反应, 并转化为醛类化合物, 导致溶液荧光明显增强. 因此, 络合物TS1-Cu可实现对次氯酸根的快速实时检测, 且检测限低至120 nmol/L. 重要的是, 该络合物体系可成功地应用于商业消毒剂样品中次氯酸根的实际检测.

关键词: 荧光探针, 实时响应, 络合物基, 次氯酸根, 实际应用

A novel fluorescent probe TS1 for real-time monitoring of hypochlorite was reported. The introduction of Cu2+could lead to the formation of stable complex TS1-Cu and simultaneous remarkable fluorescence quenching. Next, “off-on” fluorescence changes of TS1-Cu were proceeded by the subsequent addition of hypochlorite, which induced the hydrolytic cleavage of the Schiff base in TS1 and the transformation to strongly fluorescent aldehyde. TS1-Cu could recognize hypochlorite through an instantaneous marked fluorescence enhancement with the detection limit as low as 120 nmol/L. Furthermore, the sensitive and rapid detection of hypochlorite with TS1-Cu for the practical application was also performed in commercial disinfectant samples.

Key words: fluorescent probe, real-time response, ensemble-based, hypochlorite, practical application