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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Nantanit Wanichacheva | en_US |
dc.contributor.author | Monchai Siriprumpoonthum | en_US |
dc.contributor.author | Anyanee Kamkaew | en_US |
dc.contributor.author | Kate Grudpan | en_US |
dc.date.accessioned | 2018-09-10T03:14:33Z | - |
dc.date.available | 2018-09-10T03:14:33Z | - |
dc.date.issued | 2009-04-22 | en_US |
dc.identifier.issn | 00404039 | en_US |
dc.identifier.other | 2-s2.0-61349160485 | en_US |
dc.identifier.other | 10.1016/j.tetlet.2009.01.118 | en_US |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=61349160485&origin=inward | en_US |
dc.identifier.uri | http://cmuir.cmu.ac.th/jspui/handle/6653943832/59381 | - |
dc.description.abstract | A novel macromolecule based on 2-[3-(2-aminoethylthio)propylthio]ethanamine covalently bound to two 7-nitrobenzo-2-oxa-1,3-diazolyl moieties was prepared as a fluoroionophore and a chromophore for the selective optical detection of Hg2+. The sensor was prepared in two steps and its fluoroionophoric and chromophoric properties toward various transition metal, alkali, and alkali earth cations were investigated. Compound 4 selectively binds Hg2+, and the binding is indicated by both fluorescence quenching and a chromogenic change which can be detected by the naked eye. In an 80:20 acetonitrile/water solvent mixture, 4 acts as an ON-OFF fluorescence switch upon Hg2+binding, exhibiting efficient quenching and a detection limit of 10-7M or 20 ppb. © 2009 Elsevier Ltd. All rights reserved. | en_US |
dc.subject | Biochemistry, Genetics and Molecular Biology | en_US |
dc.subject | Chemistry | en_US |
dc.subject | Pharmacology, Toxicology and Pharmaceutics | en_US |
dc.title | Dual optical detection of a novel selective mercury sensor based on 7-nitrobenzo-2-oxa-1,3-diazolyl subunits | en_US |
dc.type | Journal | en_US |
article.title.sourcetitle | Tetrahedron Letters | en_US |
article.volume | 50 | en_US |
article.stream.affiliations | Silpakorn University | en_US |
article.stream.affiliations | Chiang Mai University | en_US |
Appears in Collections: | CMUL: Journal Articles |
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