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A novel rhodamine-benzothiazole fluorescent probe L was designed and synthesized which can be selective detection of three kinds of metal ions (Hg2+, Cr3+ and Al3+), through the mechanism of fluorescence resonance energy transfer (FRET). This probe L shows good sensitivity towards Hg2+, Cr3+ and Al3+ even at the sub-micromolar levels, which exhibited ratiometric fluorescence change from colorless...
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