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

Young-Keun Yang(Yonsei University), Keun-Jeong Yook(Yonsei University), Jinsung Tae(Yonsei University)
Journal of the American Chemical Society
November 9, 2005
Cited by 1,039

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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