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Issue 20, 2018
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A novel colorimetric and ratiometric fluorescent CN sensor based on rhodamine B hydrazone derivatives in aqueous media and its application in sprouting potatoes

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Abstract

A novel highly selective chemosensor Z 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 chemosensor Z 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 1H-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 chemosensor Z 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.

Graphical abstract: A novel colorimetric and ratiometric fluorescent CN− sensor based on rhodamine B hydrazone derivatives in aqueous media and its application in sprouting potatoes

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Publication details

The article was received on 03 Apr 2018, accepted on 28 Jul 2018 and first published on 09 Aug 2018


Article type: Paper
DOI: 10.1039/C8NJ01612G
Citation: New J. Chem., 2018,42, 17056-17061
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    A novel colorimetric and ratiometric fluorescent CN sensor based on rhodamine B hydrazone derivatives in aqueous media and its application in sprouting potatoes

    C. Long, J. Hu, P. Ni, Z. Yin and Q. Fu, New J. Chem., 2018, 42, 17056
    DOI: 10.1039/C8NJ01612G

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