A Rhodamine-Based Fluorescent and Colorimetric Chemodosimeter for the Rapid Detection of Hg 2+  Ions in Aqueous Media

Yang, Young-Keun; Yook, Keun-Jeong; Tae, Jinsung

doi:10.1021/ja054855t

articleJournal of the American Chemical SocietyNov 9, 2005Closed access

A Rhodamine-Based Fluorescent and Colorimetric Chemodosimeter for the Rapid Detection of Hg 2+ Ions in Aqueous Media

YYYoung-Keun Yang KYKeun-Jeong Yook JTJinsung Tae

Yonsei University

PubMed

Indexed incrossrefpubmed

Abstract

A rhodamine-based fluorescent and colorimetric chemodosimeter for the rapid detection of Hg2+ ions in aqueous media was developed. The system, which utilizes an irreversible Hg2+-promoted oxadiazole forming reaction, responds instantaneously at room temperature in a 1:1 stoichiometric manner to the amount of Hg2+. The selectivity of this system for Hg2+ over other metal ions is remarkably high, and its sensitivity is below 2 ppb in aqueous solutions.

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Topics & keywords

Topics

Keywords

Chemistry
Fluorescence
Metal ions in aqueous solution
Aqueous solution
Rhodamine
Stoichiometry
Aqueous medium
Selectivity

UN Sustainable Development Goals

Clean water and sanitation

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