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. 2023 Apr 18;39(8):1307–1316. doi: 10.1007/s44211-023-00340-6

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Scheme 1 — Schematic illustration of visual quantitation of Al(III) in a microtiter plate with the Eu(III)-(3-NTA)3 complex as a luminescent probe. The probe was reacted with different concentrations of Al(III) and excited under UV light with λ_exc = 365 nm (the numbers indicate the concentrations of Al(III) in µM)