A highly selective fluorescent chemosensor for Pb2+

被引：646

作者：

Kwon, JY

Jang, YJ

Lee, YJ

Kim, KM

Seo, MS

Nam, W

Yoon, J

机构：

[1] Ewha Womans Univ, Dept Chem, Seoul 120750, South Korea

[2] Ewha Womans Univ, Div Nano Sci, Seoul 120750, South Korea

[3] Ewha Womans Univ, Creat Res Initiat Program Biomimet Syst, Seoul 120750, South Korea

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 28期

关键词：

D O I：

10.1021/ja051075b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new fluorescent sensor based on rhodamine B for Pb2+ was synthesized. The new fluorescent sensor showed an extreme selectivity for Pb2+ over other metal ions examined in acetonitrile. Upon the addition of Pb2+, an overall emission change of 100-fold was observed, and the selectivity was calculated to be 200 times that of Zn2+. The signal transduction occurs via of reversible CHEF (chelation-enhanced fluorescence) with this inherent quenching metal ion.

引用

页码：10107 / 10111

页数：5

共 30 条

[1] Response of a benzoxainone derivative linked to monoaza-15-crown-5 with divalent heavy metals [J].