摘要
A new pyrene derivative BF bearing a furan group was synthesized via a one-step reaction as a colorimetric and ratiometric chemosensor for Al3＋ in ethanol-H20 （9：1, v/v, pH 7.2, HEPES buffer） solution. This chemosensor could selectively recognize Al3＋ in the presence of other competing ions. Low limit of detection （LOD） and high association constant revealed its superior sensitivity and binding affinity toward Al3＋, Besides, the probe BF performed perfectly in a reversibility test using EDTA. The mechanism of the interaction has been confirmed by 1H NMR titration. Importantly, chemosensor BF has also been utilized to detect Al3＋ on test paper strips, which showed its ootential for practical applications.
A new pyrene derivative BF bearing a furan group was synthesized via a one-step reaction as a colorimetric and ratiometric chemosensor for Al3＋ in ethanol-H20 （9：1, v/v, pH 7.2, HEPES buffer） solution. This chemosensor could selectively recognize Al3＋ in the presence of other competing ions. Low limit of detection （LOD） and high association constant revealed its superior sensitivity and binding affinity toward Al3＋, Besides, the probe BF performed perfectly in a reversibility test using EDTA. The mechanism of the interaction has been confirmed by 1H NMR titration. Importantly, chemosensor BF has also been utilized to detect Al3＋ on test paper strips, which showed its ootential for practical applications.
基金
the financial support from the open fund of the State Key Laboratory of Materials-Oriented Chemical Engineering(No.KL13-07)
the Specialized Research Fund for the Doctoral Program of Higher Education(No.20123221110012)
the China Postdoctoral Science Foundation(No.2014M550287)
the Postgraduate Education and Innovation Project of Jiangsu Province(No.KYLX-0772)
