Dual-channel detection of Cu2+ and F- with a simple Schiff-based colorimetric and fluorescent sensor

被引：102

作者：

Na, Yu Jeong ^{[1
,2
]}

Choi, Ye Won ^{[1
,2
]}

Yun, Jin Yeong ^{[1
,2
]}

Park, Kyung-Min ^{[3
,4
]}

Chang, Pahn-Shick ^{[3
,4
]}

Kim, Cheal ^{[1
,2
]}

机构：

[1] Seoul Natl Univ Sci & Technol, Dept Fine Chem, Seoul 139743, South Korea

[2] Seoul Natl Univ Sci & Technol, Dept Interdisciplinary Bio IT Mat, Seoul 139743, South Korea

[3] Seoul Natl Univ, Ctr Food & Bioconvergence, Dept Agr Biotechnol, Seoul 151742, South Korea

[4] Seoul Natl Univ, Res Inst Agr & Life Sci, Seoul 151742, South Korea

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2015年 / 136卷

基金：

新加坡国家研究基金会;

关键词：

Copper; Fluoride; Colorimetric; Fluorescent; Reversible; MULTIPLE-TARGET IONS; SELECTIVE DETECTION; AQUEOUS-SOLUTION; CHEMOSENSOR; FLUORIDE; COPPER; CYANIDE; CU(II); PROBE; RECOGNITION;

D O I：

10.1016/j.saa.2014.10.060

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A simple and easily synthesized colorimetric and fluorescent receptor 1, based on 4-diethylaminosalicyl-aldehyde moieties as a binding and signaling unit, has been synthesized and characterized. The receptor 1 has a selective colorimetric sensing ability for copper (II) ion by changing color from colorless to yellow in aqueous solution, and could be utilized to monitor Cu(II) over a wide pH range of 4-11. In addition, the detection limit (12 mu M) of 1 for Cu2+ is much lower than that (30 mu M) recommended by WHO in drinking water, and its copper complex could be reversible simply through treatment with a proper reagent such as EDTA. Moreover, receptor 1 exhibited both a color change from colorless to yellow and fluorescence enhancement with a red shift upon addition to F- in DMSO. The recognition mechanism was attributed to the intermolecular proton transfer between the hydroxyl group of the receptor and the fluoride. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：1649 / 1657

页数：9

共 59 条

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