Abstract

A chemosensor (R)-OH bearing an amino alcohol group was synthesized for the highly selective fluorescent recognition of Al3+ with low limit of detection (16 ppb). “Turn-on” type fluorescence changes were observed upon the addition of Al3+ in aqueous solution. The significant enhancement (35.4-fold) of fluorescence intensity was ascribed to the complex formation between (R)-OH and Al3+ which denoted as the chelation-enhanced fluorescence (CHEF) process.

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