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  • Title: A novel dual-channel chemosensor for CN- using asymmetric double-azine derivatives in aqueous media and its application in bitter almond.
    Author: Pei PX, Hu JH, Chen Y, Sun Y, Qi J.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2017 Jun 15; 181():131-136. PubMed ID: 28351819.
    Abstract:
    In this paper, we have designed and synthesized a novel sensor L1 based on asymmetric double-azine derivatives, which showed both "naked eye" recognition and fluorescence responses for CN- in DMSO/H2O (v/v=4:1, pH=7.20) solution. This simple sensor L1 could distinguish CN- from coexisting anions via the way of deprotonation and sensing mechanism of intramolecular charge transfer (ICT), and the minimum detection limit on fluorescence response of the sensor L1 towards CN- was down to 9.47×10-7M. Moreover, we have successfully utilized the sensor L1 to detect CN- in bitter almond. Test strips containing L1 were also prepared, which could act as a practical colorimetric tool to detect CN- in aqueous media.
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