A new rhodamine-based chemosensor for turn-on fluorescent detection of Fe3+

被引：41
|
作者：
Han, Xiang [1 ]
Wang, Dong-En [1 ]
Chen, Sheng [1 ]
Zhang, Longlong [1 ]
Guo, Yadan [1 ]
Wang, Jinyi [1 ]
机构：
[1] Northwest A&F Univ, Coll Sci, Yangling 712100, Shaanxi, Peoples R China
来源：
ANALYTICAL METHODS | 2015年 / 7卷 / 10期
基金：
中国国家自然科学基金;
关键词：
CHROMOGENIC DETECTION; OFF CHEMOSENSORS; SENSOR; PROBE; MERCURY; SPIROLACTAM; IONS; CR3+; IRON;
D O I：
10.1039/c5ay00568j
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A new fluorescent probe RH-Fe based on rhodamine B lactam was developed as a colorimetric and fluorescent chemosensor for Fe3+. The optical feature of RH-Fe for Fe3+ was investigated using UV-vis absorption and fluorescence emission spectroscopy. Upon the addition of Fe3+, the RH-Fe displayed a distinct color change from colorless to pink and a significant fluorescence enhancement, which can be directly detected by the naked eye. The stoichiometry of RH-Fe to Fe3+ complex was found to be 1 : 1 and the detection limit was determined to be as low as 0.27 mM. The results suggest that the RH-Fe probe may provide a convenient method for the visual detection of Fe3+ with high sensitivity.
引用
收藏
页码：4231 / 4236
页数：6
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