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A new pyrene derivative BF bearing a furan group was synthesized via a one-step reaction as a colorimetric and ratiometric chemosensor for Al3+ in ethanol–H2O (9:1, v/v, pH 7.2, HEPES buffer) solution. This chemosensor could selectively recognize Al3+ in the presence of other competing ions. Low limit of detection (LOD) and high association constant revealed its superior sensitivity and binding affinity...
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