Characterization of a fluorescent sol-gel encapsulated erythrosin B dissolved oxygen sensor

被引：31
|
作者：
Bailey, RT [1 ]
Cruickshank, FR
Deans, G
Gillanders, RN
Tedford, MC
机构：
[1] Univ Strathclyde, Glasgow G1 1XL, Lanark, Scotland
[2] Bell Coll Technol, Hamilton ML3 0JB, Scotland
来源：
ANALYTICA CHIMICA ACTA | 2003年 / 487卷 / 01期
关键词：
erythrosin B; dissolved oxygen; sensor; sol-gel; fluorescence;
D O I：
10.1016/S0003-2670(03)00507-5
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A thin film dissolved oxygen sensor was fabricated by trapping erythrosin B in a sol-gel matrix. No phosphorescence was observed when the sensor was immersed in water. Very weak phosphorescence was observed when erythrosin B was dissolved in aqueous ethanol and acetone solutions. However, fluorescence at 590nm, which was efficiently quenched by dissolved oxygen, was observed from the doped sol-gel sensor in water. A singlet oxygen feedback mechanism was proposed. Good sensitivity and stability were observed for this detector. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：101 / 108
页数：8
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