A novel colorimetric and ratiometric fluorescent CN− sensor based on rhodamine B hydrazone derivatives in aqueous media and its application in sprouting potatoes. (26th September 2018)

• Record Type: Journal Article
• Authors: Long, Chen; Hu, Jing-Han; Ni, Peng-Wei; Yin, Zhi-yuan; Fu, Qing-Qing
• Is Part Of: New journal of chemistry. Volume 42:Number 20(2018)
• Page Start: 17056
• Page End: 17061
• Publication Date: 2018-09-26
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c8nj01612g
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : A novel cyanide specifically selective and highly sensitive chemosensorZ based on rhodamine B hydrazone derivatives had been designed and synthesized. Abstract : A novel highly selective chemosensorZ based on rhodamine B hydrazone derivatives was designed and synthesized, and it showed both colorimetric and "turn-on" fluorescence responses for CN − in an aqueous solution. The results showed that after adding CN − ions in aqueous solution, the chemosensorZ showed significant color change from colorless to pale-yellow, which was visible to the naked eye, and it rapidly produced strong green fluorescence. The probe could distinguish CN − by deprotonation and intramolecular charge transfer (ICT) mechanisms, as evidenced by 1 H-NMR titration and DFT calculations. In addition, the detection limit of the fluorescence response of the sensor for CN − was 5.81 × 10 −8 M, which was measured by titration. The chemosensorZ has been successfully used to detect CN − in sprouting potatoes.Z -containing test strips have also been prepared, and they can be used as a colorimetric tool for CN − detection in potential applications.