FIBER-OPTIC FLUOROSENSOR FOR OXYGEN AND CARBON-DIOXIDE

被引：228
|
作者：
WOLFBEIS, OS [1 ]
WEIS, LJ [1 ]
LEINER, MJP [1 ]
ZIEGLER, WE [1 ]
机构：
[1] AVL LIST GMBH,A-8020 GRAZ,AUSTRIA
来源：
ANALYTICAL CHEMISTRY | 1988年 / 60卷 / 19期
关键词：
Carbon Dioxide--Measurements - Fiber Optics--Applications - Oxygen--Measurements;
D O I：
10.1021/ac00170a009
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The capability of fiber-optic light guides to transmit a variety of optical signals simultaneously has been exploited to construct an optical fiber sensor for measurement of both oxygen and carbon dioxide. The oxygen-sensitive material (a Kieseigel-adsorbed fluorescent metal-organic complex) and the CO2-sensitive material (an immobilized pH indicator in a buffer solution) are entrapped in a gas-permeable polymer matrix that is attached to the distal end of the fiber. Both indicators have the same excitation wavelength (in order to avoid energy transfer) but quite different emission maxima. The two emission bands can easily be separated with the help of interference filters and give independent signals.
引用
收藏
页码：2028 / 2030
页数：3
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