A new fluorescent probe for distinguishing Zn2+ and Cd2+ with high sensitivity and selectivity

被引：61

作者：

Tan, Yiqun ^{[1
]}

Gao, Junkuo ^{[1
]}

Yu, Jiancan ^{[1
]}

Wang, Ziqi ^{[1
]}

Cui, Yuanjing ^{[1
]}

Yang, Yu ^{[1
]}

Qian, Guodong ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Cyrus Tang Ctr Sensor Mat & Applicat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

DALTON TRANSACTIONS | 2013年 / 42卷 / 32期

基金：

中国国家自然科学基金;

关键词：

INTRAMOLECULAR CHARGE-TRANSFER; ZINC IONS; AQUEOUS-SOLUTION; CADMIUM; CHEMOSENSOR; RED; SENSOR; SHIFT; DYES; CHEMODOSIMETER;

D O I：

10.1039/c3dt50991e

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new fluorescence probe for distinguishing Zn2+ and Cd2+ is designed and synthesized. For the first time to our knowledge, this probe can recognize similar metal ions by coherently utilizing intramolecular charge transfer (ICT) and different electronic affinities of various metal ions, instead of by selective coordination alone, which may be interfered with and lose its selectivity easily in a complicated environment, providing a distinct recognition even by the naked eye for Zn2+ and Cd2+ with the sensitivity at the ppb level. This design strategy may initiate a straightforward approach for the selective detection of various metal ions with similar chemical properties in extensive applications such as environmental, industrial, and bio-science.

引用

页码：11465 / 11470

页数：6

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