A new fluorescent sensor bearing three dansyl fluorophores for highly sensitive and selective detection of mercury(II) ions
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 Hg 2+-selective ON-OFF fluorescence quenching behavior in aqueous acetonitrile solutions and i...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2014
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| Online Access: | http://www.scopus.com/inward/record.url?eid=2-s2.0-80054097967&partnerID=40&md5=b0298c026275ed40db3b685eff979e5b http://cmuir.cmu.ac.th/handle/6653943832/6428 |
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| Institution: | Chiang Mai University |
| Language: | English |
| Summary: | 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 Hg 2+-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+, Mn 2+, Na+, Ni2+, and Zn2+, with a detection limit of 1.15 × 10-7 M or 23 ppb. © 2011 Elsevier Ltd. All rights reserved. |
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