A ratiometric fluorescent probe based on benzo [e] indolium for cyanide ion in water

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• 作者：Yue Sun ; Shanwei Fan ; Lian Duan ; Ruifeng Li
• 关键词：Benzo [e] indolium ; Cyanide-sensing ; Chemosensor ; Ratiometric fluorescence
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2013
• 出版时间：August, 2013
• 年：2013
• 卷：185
• 期：Complete
• 页码：638-643
• 全文大小：1359 K

文摘

A new ratiometric fluorescent cyanide probe bearing a benzo [e] indolium moiety as a fluorophore and binding site was developed. The detection of cyanide was performed via the nucleophilic attack of cyanide toward the benzo [e] indolium group of the probe, resulting in a prominent fluorescence ratiometric change and a color change. The probe was invested in water with high selectivity and sensitivity for cyanide. A simple paper test strip system for the rapid monitoring of cyanide was developed.