A dual-site fluorescent probe for separate detection of hydrogen sulfide and bisulfite. (January 2019)

• Record Type: Journal Article
• Authors: Wang, Hao; Wu, Xiaoming; Yang, Shaoxiang; Tian, Hongyu; Liu, Yongguo; Sun, Baoguo
• Is Part Of: Dyes and pigments. Volume 160(2019)
• Page Start: 757
• Page End: 764
• Publication Date: 2019-01
• Subjects: Dual-site fluorescent probe -- Hydrogen sulfide -- Bisulfite -- Colorimetric; Dyes and dyeing -- Periodicals; Pigments -- Periodicals; 667.2
• DOI: 10.1016/j.dyepig.2018.09.020
• Languages: English
• ISSNs: 0143-7208

Abstract

Abstract: A new dual-site fluorescent probe (probe 1) was synthesized for the separate detection of hydrogen sulfide and bisulfite. Probe 1 exhibited a rapid response to H2 S and HSO3 − through two emission wavelengths and color changes, and displayed satisfactory sensitivity. Probe 1 changed color in response to various concentrations of H2 S, while probe 1 test paper changed gradually from colorless to pink. With HSO3 − addition, there was almost no color change. Furthermore, the presence of HSO3 − does not affect the detection of H2 S; however, the presence of H2 S interferes with the detection of HSO3 − . Hence, quantitative detection of HSO3 − must occur in an H2 S-free environment. The results indicate that probe 1 is suitable for use as a sensor for hydrogen sulfide detection. Graphical abstract: A dual-site fluorescent probe was designed and synthesized for separate detection of hydrogen sulfide and bisulfite. Image 1 Highlights: A dual-site fluorescent probe was developed for separate detection of hydrogen sulfide and bisulfite. The fluorescent probe reacted with various concentrations of H2 S and produced gradual color changes. With increasing H2 S concentration, the color of probe 1 test paper changed gradually from colorless to pink. The probe was successfully applied to the qualitative and quantitative detection of H2 S in real water samples.