Rapid and highly selective relay recognition of Cu(II) and sulfide ions by a simple benzimidazole-based fluorescent sensor in water

被引：164

作者：

Tang, Lijun ^{[1
]}

Cai, Mingjun ^{[1
]}

Huang, Zhenlong ^{[1
]}

Zhong, Keli ^{[1
]}

Hou, Shuhua ^{[1
]}

Bian, Yanjiang ^{[1
]}

Nandhakumar, Raju ^{[2
]}

机构：

[1] Bohai Univ, Liaoning Key Lab Synth & Applicat Funct Cpds, Dept Chem, Jinzhou 121013, Peoples R China

[2] Karunya Univ, Dept Chem, Coimbatore 641114, Tamil Nadu, India

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2013年 / 185卷

关键词：

Copper(II) recognition; Sulfide recognition; Fluorescence; Benzimidazole; Copper displacement; HYDROGEN-SULFIDE; SCHIFF-BASE; ENVIRONMENTAL-SAMPLES; COLORIMETRIC PROBE; ANION RECOGNITION; AQUEOUS-SOLUTION; LIVING CELLS; COPPER; CU2+; CHEMODOSIMETER;

D O I：

10.1016/j.snb.2013.04.109

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

To realize highly selective relay recognition of Cu2+ and sulfide ions, a simple benzimidazole-based fluorescent chemosensor (1) was designed and synthesized. Sensor 1 displays rapid, highly selective and sensitive recognition to Cu2+ in 100% water solution at pH 6.0. The in situ generated 1-Cu2+ complex solution exhibit a fast response and high selectivity toward sulfide anion via Cu2+ displacement approach. The detection limits of sensor 1 to Cu2+ and 1-Cu2+ complex to sulfide anion were estimated to be 3.5 x 10(-7) M and 1.35 x 10(-6) M, respectively. Proof-of-concept experiment results demonstrate that sensor 1 has potential utilities for Cu2+ and sulfide ion concentration evaluation in real water samples. This successive recognition feature of sensor 1 makes it has a potential utility for Cu2+ and sulfide anion detection in water. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：188 / 194

页数：7

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