Al3+ plays important roles in biological and environmental process, so the detection of Al3+ attracts the intrest of many scientists. Among the detection methods, fluorescent probe method has many advantages such as high sensitivity and good selectivity, and has become an important detection method for the analysis of Al3+ in vivo/vitro. In this work, a fluorescent probe P derived from benzoyl hydrazine was synthesized and characterized as an Al3+-selective probe. Compared to other tested metal ions, P shows better selectivity to Al3+ in ethnol solution, a linear relationship was found between the fluorescence intensity at 444 nm from 5.0×10-6 to 2.0×10-5 M of Al3+ concentration with a detection limit of 1.7×10-6 M of Al3+. Job’s plot revealed that P and Al3+ formed a complex in 1:1 stoichiometry.
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