A fluorous-tag-assisted fluorescent probe for simple and selective detection of hydrogen sulfide: application for turbid dyeing solutions

• Published in: RSC advances Vol. 13; no. 46; pp. 32137 - 32142
• Main Authors: Park, Geonwoo, Jang, Mincheol, Han, Min Su
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 02-11-2023; The Royal Society of Chemistry
• Subjects: Aquatic environment; Chemistry; Fluorescent indicators; Hydrogen sulfide; Polytetrafluoroethylene
• ISSN: 2046-2069; 2046-2069
• DOI: 10.1039/d3ra06740h

Accurate hydrogen sulfide (H
2
S) detection has attracted much attention because its toxicity may affect aquatic environments and human health. However, recognizing H
2
S levels by conventional fluorescent probes in turbid wastewater has been challenging because the opaque environment interferes with their photophysical properties. To overcome this limitation, a fluorous-tagging strategy can be used for the development of fluorescent sensors to detect H
2
S in turbid solutions. The use of fluorescent probe assisted with fluorous-tag allowed for easy isolation of the probe using polytetrafluoroethylene (PTFE) material, while disturbing species were eliminated through a simple aqueous wash. This approach enabled the fluorescent probe to effectively quantify H
2
S, even in opaque solutions containing organic dyes that could interfere with fluorescence emission.
A fluorous-tagging strategy was introduced for the development of fluorescent probes, resulting the quantitative and selective detection of H
2
S, even in turbid dyeing solutions, using fluorous solid-phase extraction.