Fluoro reactands and dual luminophore referencing: A technique to optically measure amines

被引：33
作者：
Mohr, GJ
Klimant, I
Spichiger-Keller, UE
Wolfbeis, OS
机构：
[1] ETH Technopk, Ctr Chem Sensors, CH-8005 Zurich, Switzerland
[2] Univ Regensburg, Inst Analyt Chem Chemo & Biosensors, D-93040 Regensburg, Germany
来源：
ANALYTICAL CHEMISTRY | 2001年 / 73卷 / 05期
关键词：
D O I：
10.1021/ac000945z
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
An optical sensor for aqueous l-butylamine is presented which combines two novel techniques: A fluorescent indicator dye (fluoro reactand) embedded in a thin polymer layer performs a reversible chemical reaction with the analyte, causing changes in luminescence intensity. At the same time, inert phosphorescent beads dispersed within the polymer layer provide luminescence signals that act as an internal reference for the indicator dye. As a consequence, the optical sensor is independent of light source fluctuations, ambient light, drifts in optoelectronic setup, or optical fiber bending.
引用
收藏
页码：1053 / 1056
页数：4
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