一种高turn-on 荧光 CHEF 型化学传感器，用于选择性检测水相介质中的 Cu。
A highly turn-on fluorescent CHEF-type chemosensor for selective detection of Cu in aqueous media.
机构信息
LCBAE, Equipe Chimie Moléculaire et Molécules Bioactives, Faculté des Sciences Université Moulay Ismail, BP 11201 Zitoune, Meknes, Morocco.
Université d'Angers, CNRS UMR 6200, Laboratoire MOLTECH-Anjou, 2 bd Lavoisier, 49045 Angers Cedex, France.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2019 May 15;215:348-353. doi: 10.1016/j.saa.2019.02.099. Epub 2019 Feb 28.
An efficient "turn on" fluorescence chemosensor Schiff base LH based on the combination of 2-Hydroxy-5-(p-tolyldiazenyl)benzaldehyde and N-(3-Aminopropyl)imidazole was prepared and characterized then evaluated for its selective fluorescent sensing of Cu amongst other metal ions. The CN isomerization inhibition process induced by the Cu binding warrants the chelation-induced enhanced fluorescence (CHEF) effect. In addition, the detection limit sensing of LH for Cu was found to be 1.8 × 10 M that is below the WHO recommendation level (20 μM) for drinking water.
一种高效的“开启”荧光化学传感器希夫碱 LH，基于 2-羟基-5-(对甲苯亚氨基)苯甲醛和 N-(3-氨丙基)咪唑的组合，被制备和表征，然后评估其对 Cu 与其他金属离子的选择性荧光传感性能。Cu 结合诱导的 CN 异构化抑制过程保证了螯合诱导增强荧光（CHEF）效应。此外，发现 LH 对 Cu 的检测限传感为 1.8×10-7 M，低于世界卫生组织（WHO）对饮用水的建议水平（20 μM）。
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