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A new Schiff base ligand N-(2-hydroxy-1-naphthaldehyde)-1,8-diaminonaphthalene (NHND) was synthesized and characterized, and a new ternary photoluminescence enhancement system Eu–NHND–1,10-phenanthroline in acetonitrile was successfully developed to determine trace amounts of Eu 3+ . The excitation and emission wavelengths were 274 and 617nm, respectively. Under optimal conditions, the photoluminescence...
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