z-logo
open-access-imgOpen Access
A Highly Selective and Sensitive Turn‐On Fluorescent Chemosensor Based on Rhodamine 6G for Iron(III)
Author(s) -
Hu Zhi-Qiang,
Gu Ying-Ying,
Hu Wen-Zhou,
Sun Lei-Li,
Zhu Jiang-Hua,
Jiang Yi
Publication year - 2014
Publication title -
chemistryopen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 29
ISSN - 2191-1363
DOI - 10.1002/open.201402065
Subject(s) - fluorescence , chemistry , photochemistry , rhodamine 6g , rhodamine , absorbance , detection limit , metal ions in aqueous solution , quenching (fluorescence) , acetonitrile , metal , organic chemistry , chromatography , molecule , physics , quantum mechanics
Recently, more and more rhodamine derivatives have been used as fluorophores to construct sensors due to their excellent spectroscopic properties. A rhodamine‐based fluorescent and colorimetric Fe 3+ chemosensor 3’,6’‐bis(ethylamino)‐2‐acetoxyl‐2’,7’‐dimethyl‐spiro[1 H ‐isoindole‐1,9’‐[9 H ]xanthen]‐3(2 H )‐one ( RAE ) was designed and synthesized. Upon the addition of Fe 3+ , the dramatic enhancement of both fluorescence and absorbance intensity, as well as the color change of the solution, could be observed. The detection limit of RAE for Fe 3+ was around 7.98 ppb. Common coexistent metal ions showed little or no interference in the detection of Fe 3+ . Moreover, the addition of CN − could quench the fluorescence of the acetonitrile solution of RAE and Fe 3+ , indicating the regeneration of the chemosensor RAE . The robust nature of the sensor was shown by the detection of Fe 3+ even after repeated rounds of quenching. As iron is a ubiquitous metal in cells and plays vital roles in many biological processes, this chemosensor could be developed to have applications in biological studies.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here