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Hg2+-selective dual signaling probe based on a thio-functionalized rhodamine B hydroxamic acid
- Authors
- Jeong, Yong Ae; Choi, Jiyoung; Chang, Suk-Kyu
- Issue Date
- Aug-2015
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Hg2+ signaling; Chromogenic probe; Fluorogenic probe; Rhodamine hydroxamic acid; Thionation
- Citation
- TETRAHEDRON LETTERS, v.56, no.34, pp 4919 - 4922
- Pages
- 4
- Journal Title
- TETRAHEDRON LETTERS
- Volume
- 56
- Number
- 34
- Start Page
- 4919
- End Page
- 4922
- ISSN
- 0040-4039
- Abstract
- A new Hg2+-selective signaling system based on a thio-functionalized rhodamine B hydroxamic acid was investigated. A thio-analogue of rhodamine B hydroxamic acid had a distinct Hg2+-selective signaling behavior in aqueous solution, whereas its parent hydroxamic acid was completely unreactive toward any metal ions. Selective chromogenic and fluorogenic signaling of Hg2+ the thio-functionalized rhodamine B hydroxamic acid in aqueous solution was possible with a detection limit of 1.0 x 10(-6) M. Hg2+ determination based on paper test strips was conducted as a practical application. (C) 2015 Elsevier Ltd. All rights reserved.
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