A Schiff‐based sensor with turn‐on fluorescence for selective detection of Hg 2+ | Zendy

Wan ChinFeng | Zendy; Lin HsiangYi | Zendy; Chien Cho | Zendy; Wu AnTai | Zendy

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A Schiff‐based sensor with turn‐on fluorescence for selective detection of Hg 2+

Author(s) -

Wan ChinFeng,

Lin HsiangYi,

Chien Cho,

Wu AnTai

Publication year - 2014

Publication title -

luminescence

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.428

H-Index - 45

eISSN - 1522-7243

pISSN - 1522-7235

DOI - 10.1002/bio.2592

Subject(s) - tetrahydrofuran , schiff base , naked eye , chemistry , stoichiometry , fluorescence , turn (biochemistry) , analytical chemistry (journal) , metal , detection limit , stereochemistry , chromatography , organic chemistry , optics , biochemistry , physics , solvent

A simple Schiff‐base colorimetric receptor 1 was prepared. It exhibits an ‘off–on‐type’ mode with high sensitivity in the presence of Hg 2+ . The change in color is very easily observed by the naked eye in the presence of Hg 2+ , whereas other metal cations do not induce such a change. A Job plot indicated a 1 : 1 complexation stoichiometry between receptor 1 and Hg 2+ . The association constant for 1–Hg 2+ in Tetrahydrofuran (THF) was determined to be 1.3 × 10 9 M ‐1 using a Hill plot. Copyright © 2013 John Wiley & Sons, Ltd.

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