A Fluorescent Sensor For Zn2+ Based on Rhodamine Thiophene Framework

被引：4
作者：
Bai, Cui-Bing [1 ,2 ]
Wang, Sheng-Nan [1 ]
Qiao, Rui [1 ,2 ]
Fan, Hai-Yun [1 ]
Wei, Biao [1 ,2 ]
Xu, Peng [1 ]
Zhang, Lin [1 ,2 ]
Zhang, Jie [1 ]
Li, Rui-Qian [1 ,2 ]
Chen, Shui-Sheng [1 ,2 ]
Yang, Song [1 ,2 ]
机构：
[1] Fuyang Normal Univ, Sch Chem & Mat Engn, Fuyang 236037, Anhui, Peoples R China
[2] Anhui Prov Key Lab Degradat & Monitoring Pollut E, Fuyang 236037, Anhui, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2018年 / 13卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Rhodamine-6G; Fluorescent Sensors; Zn2+; Test Strip; HIGHLY SELECTIVE FLUORESCENCE; NANOMOLAR DETECTION; AQUEOUS-MEDIA; ZINC IONS; PROBE; CU2+; CHEMOSENSOR; RECOGNITION; CELLS; HG2+;
D O I：
10.20964/2018.11.14
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The thiophene-modified rhodamine derivative was synthesized and characterized. The fluorescent sensor XQS for Zn2+ have been studied. XQS showed fluorescent specific selectivity for Zn2+ against other metal ions in HEPES buffer (10 mM, pH 7.4)/CH3CN (40:60, V/V) solution. The distinct color change and the rapid emergence of fluorescence emission provided naked-eyes detection for Zn2+ . The test strip results showed that the sensor XQS could act as a convenient Zn2+ test kit. The recognition mechanism of XQS toward Zn2+ was studied by IR, the Job's plots and ESI-MS analysis. The detection limits of XQS towards Zn2+ was calculated as 6.89 mu M. XQS-Zn2+. In addition, cyclic voltammograms of XQS and XQS+Zn2+, fluorescence lifetime and fluorescence quantum yield were also determined.
引用
收藏
页码：10368 / 10381
页数：14
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