A ratiometric fluorescence sensor for caffeine

被引：20
作者：
Luisier, Nicolas [1 ]
Ruggi, Albert [1 ]
Steinmann, Stephan N. [1 ]
Favre, Laurane [1 ]
Gaeng, Nicolas [1 ]
Corminboeuf, Clemence [1 ]
Severin, Kay [1 ]
机构：
[1] Ecole Polytech Fed Lausanne, Inst Sci & Ingn Chim, CH-1015 Lausanne, Switzerland
来源：
ORGANIC & BIOMOLECULAR CHEMISTRY | 2012年 / 10卷 / 37期
基金：
瑞士国家科学基金会;
关键词：
GLASSY-CARBON ELECTRODE; VOLTAMMETRIC DETERMINATION; SENSITIVE DETERMINATION; ELECTROCHEMICAL SENSOR; LIQUID-CHROMATOGRAPHY; THEOBROMINE;
D O I：
10.1039/c2ob26117k
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The dye disodium 3,4: 3',4'-bibenzo[b]thiophene-2,2'-disulfonate can be used as a molecular probe for the fluorimetric detection of caffeine in aqueous solution. The fluorescence response is attributed to non-covalent interactions of caffeine with the dye in the ground state and in the excited state. The bimodal interaction allows performing ratiometric measurements with very good selectivity over structurally related analytes. The dye was also used to develop a simple test strip for the visual differentiation of normal and decaffeinated coffee with a standard UV lamp.
引用
收藏
页码：7487 / 7490
页数：4
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