INTELLIGENT SENSOR FOR METAL-IONS BASED ON FLUORESCENCE RESONANCE ENERGY-TRANSFER

被引：26
|
作者：
BIRCH, DJS [1 ]
HOLMES, AS [1 ]
DARBYSHIRE, M [1 ]
机构：
[1] BRITISH NUCL FUELS PLC, SPRINGFIELDS WORKS, CO RES LAB, PRESTON PR4 0XJ, LANCS, ENGLAND
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 1995年 / 6卷 / 02期
关键词：
D O I：
10.1088/0957-0233/6/2/019
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report a new type of remote optical sensor of metal ions in solution based on fluorescence lifetime quenching due to dipole-dipole energy transfer across a polymer-water interface. Ion selectivity is provided by spectral overlap between the sensor fluorescence and metal ion absorption. The sensor is demonstrated in the detection of cobalt ions in water at levels down to 17 mu g.
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页码：243 / 247
页数：5
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