A new selective colorimetric and fluorescent sensor for Hg2+ and Cu2+ based on a thiourea featuring a pyrene unit
| Autor: | Chen-Yu Wu, Yao-Pin Yen, Wei-Chi Lin, Zhao-Hong Liu, Chi-Yung Lin |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Magnetic Resonance Spectroscopy
Ultraviolet Rays Metal ions in aqueous solution Photochemistry Analytical Chemistry chemistry.chemical_compound Qualitative inorganic analysis Coloring Agents Colorimetry Fluorescent Dyes Ions Pyrenes Aqueous solution Dose-Response Relationship Drug Chemistry Chromogenic Thiourea Mercury Fluorescence Spectrometry Fluorescence Models Chemical Spectrophotometry Pyrene Spectrophotometry Ultraviolet Copper |
| Zdroj: | Talanta. 81:1209-1215 |
| ISSN: | 0039-9140 |
| DOI: | 10.1016/j.talanta.2010.02.012 |
| Popis: | A new artificial receptor 1 was developed, and its chromogenic and fluorogenic behaviors toward various metal ions were investigated. Receptor 1 shows exclusively responses toward Hg(2+) and Cu(2+) ions. It selectively senses Hg(2+) and Cu(2+) ions through two different color changes in aqueous solution (DMSO/H(2)O=4/1) and also distinguishes them from other metal ions. In addition, receptor 1 also exhibits pronounced enhancements of the fluorescence, which can visually be discernible by an orchid fluorescence in the presence of Hg(2+) ions and a strong blue fluorescence in the presence of Cu(2+) ions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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