科研之友
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摘要
A novel quinoline-coumarin (QC) fluoroionophore conjugated by means of a triazolyl-pyrrolidinyl linker exhibits differential dual selectivity for Zn 2+ and Al 3+ in mixed media. QC acts as a turn on fluorescence sensor for Zn 2+ while exhibiting overall ratiometric selectivity for Al 3+ in aqueous media. Moreover, QC exhibited preferential second mode of selectivity for Al 3+ as it ratiometrically displaces Zn 2+ from the [QC + Zn 2+] complex.
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