Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
176677 | Dyes and Pigments | 2013 | 7 Pages |
A rhodamine-based chemosensors (RF) was designed, and their sensing behavior toward metal ions was investigated by fluorescence spectroscopies. RF showed high selective recognition toward Cr3+ over other examined metal ions in aqueous media. With the optimum condition described, the response was linearly proportional to the concentration of Cr3+ in the range 0–10 μM with a detection limit of 0.023 μM. The proposed method was also applied to intracellular Cr3+ imaging in living cells and determination Cr3+ in tap water, river water.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► This work designed and synthesized a new fluorescent probe (RF). ► The probe showed high selectivity for Cr3+ in Tris–HCl (pH = 7.2) aqueous buffer solution. ► Possible response mechanism of RF and Cr3+ has preliminary studied as well. ► The probe was successful applied to intracellular Cr3+ imaging in living cells. ► The proposed method was also applied to determination Cr3+ in water samples.