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

页码：101 / 108

页数：8

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