title: A novel dual-channel chemosensor for CN-using asymmetric double-azine derivatives in aqueous media and its application in bitter almond.
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.
authors.affiliation: College of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, PR China.
authors.forename: Peng-Xiang
authors.initials: PX
authors.lastname: Pei
authors.affiliation: College of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, PR China. Electronic address: hujinghan62@163.com.
authors.forename: Jing-Han
authors.initials: JH
authors.lastname: Hu
authors.affiliation: College of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, PR China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Chen
authors.affiliation: College of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, PR China.
authors.forename: You
authors.initials: Y
authors.lastname: Sun
authors.affiliation: College of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Qi
mesh_terms: D000838:Anions / Q000032:analysis* / Q000737:chemistry; D003124:Colorimetry / Q000379:methods*; D003486:Cyanides / Q000032:analysis* / Q000737:chemistry; D005456:Fluorescent Dyes / Q000737:chemistry; D000068181:Prunus dulcis / Q000737:chemistry*; D013050:Spectrometry, Fluorescence / Q000379:methods*
chemical_list: D000838:Anions; D003486:Cyanides; D005456:Fluorescent Dyes
keywords: Anion sensor; Cyanide; DFT; Fluorescence; Test strip