Fluorescence relay enhancement sequential recognition of Cu2+ and CN- by a new quinazoline derivative

被引：134

作者：

Tang, Lijun ^{[1
]}

Zhou, Pei ^{[1
]}

Zhong, Keli ^{[1
]}

Hou, Shuhua ^{[1
]}

机构：

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

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2013年 / 182卷

关键词：

Copper detection; Cyanide recognition; Fluorescence relay enhancement; Benzimidazole; Quinazoline; ION-PAIR RECOGNITION; TURN-ON SENSOR; SELECTIVE FLUORESCENT; AQUEOUS-SOLUTION; RATIOMETRIC FLUORESCENT; CONVENIENT SYNTHESIS; SULFIDE ANION; METAL-IONS; CYANIDE; PROBE;

D O I：

10.1016/j.snb.2013.03.043

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Sequential recognition of Cu2+ and CN- by a new benzimidazole-containing quinazoline based probe (1) has been achieved. Probe 1 exhibits highly selective and sensitive fluorescence "off-on" recognition properties to Cu2+ in CH3CH2OH/H2O (1/1, v/v, HEPES 20 mM, pH 7.0) solution with a 2:1 binding stoichiometry. The in situ prepared 1-Cu2+ complex solution displays high selectivity to CN- through fluorescence relay enhancement. This Cu2+ and CN- sequential recognition via fluorescence relay enhancement make probe 1 has a potential utility for Cu2+ and CN- detection in aqueous media. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：439 / 445

页数：7

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