Add time:07/20/2019         Source:sciencedirect.com

A new 2-(2′-hydroxyphenyl)quinazolin-4(3H)-one derived acylhydrazone (QP) was designed and synthesized as a fluorescent sensor. In Tris ∙ HCl buffer (10 mM, pH 7.4)/ethanol (1/9, v/v) solution, QP exhibits a highly selective fluorescence response to Al3 + over other metal ions with a significant blue-shifted and enhanced emission at 473 nm. QP interacts with Al3 + reversibly through a 1:2 binding ratio with a detection limit of 4.79 × 10− 8 M. Potential applicability of QP for Al3 + detection in tap and lake water samples were also examined by ‘proof-of-concept’ experiments.

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