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A highly selective and sensitive fluorescent turn-on chemosensor methyl pyrazinylketone benzoyl hydrazone (MPBH) was synthesized by a facile one-step Schiff base reaction. MPBH which owns a quite simple structure showed a high selectivity for Al 3+ over other metal ions in ethanol. Due to the formation of a 1:1 complex between MPBH and the aluminum ions, a significant fluorescence enhancement...
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