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Title: A new fluorescent sensor bearing three dansyl fluorophores for highly sensitive and selective detection of mercury(II) ions
Authors: Nantanit Wanichacheva
Ploypan Kumsorn
Rapeepat Sangsuwan
Anyanee Kamkaew
Vannajan Sanghiran Lee
Kate Grudpan
Keywords: Biochemistry, Genetics and Molecular Biology
Pharmacology, Toxicology and Pharmaceutics
Issue Date: 16-Nov-2011
Abstract: A novel fluorometric sensor bearing three dansyl moieties based on tris[2-(2-aminoethylthio)ethyl]amine was prepared by a simple approach using a conventional two-step synthesis. The sensor exhibits highly Hg2+-selective ON-OFF fluorescence quenching behavior in aqueous acetonitrile solutions and is shown to discriminate various competing metal ions, particularly Cu2+, Ag+, and Pb2+as well as Ca2+, Cd2+, Co2+, Fe3+, Mn2+, Na+, Ni2+, and Zn2+, with a detection limit of 1.15 × 10-7M or 23 ppb. © 2011 Elsevier Ltd. All rights reserved.
ISSN: 18733581
Appears in Collections:CMUL: Journal Articles

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