A selective colorimetric and fluorescence chemosensing sensor for Cr3+ based on a rhodamine base derivative
| Autor: | Mohammad Reza Ganjali, Morteza Hosseini, Mehdi Khoobi, Roghayeh Tarasi |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Detection limit Base (chemistry) Trace Amounts 010405 organic chemistry Metal ions in aqueous solution General Chemistry 010402 general chemistry 01 natural sciences Fluorescence 0104 chemical sciences Ion Rhodamine chemistry.chemical_compound chemistry Derivative (chemistry) Nuclear chemistry |
| Zdroj: | Research on Chemical Intermediates. 44:5031-5042 |
| ISSN: | 1568-5675 0922-6168 |
| Popis: | A rhodamine-conjugated coumarin (L) was used in designing a selective fluorescence chemosensor for the determination of trace amounts of Cr3+ ions in acetonitrile–water (MeCN/H2O (90:10, %v/v) solutions. The intensity of the fluoresce emission of the chemosensor is intensified upon addition of Cr3+ ions in MeCN/H2O (90:10, %v/v) solutions, due to the formation of a selective 1:1 complex between L and Cr3+ ions. The fluorescence enhancement versus Cr3+ concentration has been found to be linear from 1.0 × 10−7 to 1.8 × 10−5 M and a detection limit of 7.5 × 10−8 M. The proposed fluorescent probe proved to be highly selective towards Cr3+ ions as compared to other common metal ions and could be successfully applied to the determination of Cr3+ concentrations in some water and wastewater samples. |
| Databáze: | OpenAIRE |
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