A Highly Selective and Sensitive Turn‐On Fluorescent Chemosensor Based on Rhodamine 6G for Iron(III)
作者： Zhi-Qiang Hu , Ying-Ying Gu , Wen-Zhou Hu , Lei-Li Sun , Jiang-Hua Zhu
关键词:
摘要: Recently, more and rhodamine derivatives have been used as fluorophores to construct sensors due their excellent spectroscopic properties. A rhodamine-based fluorescent colorimetric Fe3+ chemosensor 3’,6’-bis(ethylamino)-2-acetoxyl-2’,7’-dimethyl-spiro[1H-isoindole-1,9’-[9H]xanthen]-3(2H)-one (RAE) was designed synthesized. Upon the addition of Fe3+, dramatic enhancement both fluorescence absorbance intensity, well color change solution, could be observed. The detection limit RAE for around 7.98 ppb. Common coexistent metal ions showed little or no interference in Fe3+. Moreover, CN− quench acetonitrile solution indicating regeneration RAE. robust nature sensor shown by even after repeated rounds quenching. As iron is a ubiquitous cells plays vital roles many biological processes, this developed applications studies.
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