Characterization of ormosil film for dissolved oxygen-sensing

被引：72

作者：

Chen, X ^{[1
]}

Zhong, ZM

Li, Z

Jiang, YQ

Wang, XR

Wong, KY

机构：

[1] Xiamen Univ, Dept Chem, Key Lab Analyt Sci MOE, Xiamen 361005, Peoples R China

[2] Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Kowloon, Hong Kong, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2002年 / 87卷 / 02期

基金：

中国国家自然科学基金;

关键词：

ormosil; dissolved oxygen; sensing film; hydrophobicity; fluorescence quenching;

D O I：

10.1016/S0925-4005(02)00241-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An organically modified silicate (ormosil) as a matrix for the fabrication of dissolved oxygen-sensing film was produced. The process included taking tetramethoxysilane (TMOS) and dimethyldimethoxysilane (DiMe-DMOS) as precursor and running a reaction at 60 degreesC in an open vial, which accelerates hydrolysis and condensation and results in the formation of emulsion. The film doped with tris-(4,7-diphenyl-1,10-phenanthroline) ruthenium(H) ([Ru(dpp)(3)](2+)) as an oxygen indicator exhibited a good linear relationship, fast response time, long-term stability and enhanced sensitivity to dissolved oxygen after optimizing the sol-gel processing parameters. The properties and the oxygen-sensing behavior of the film were investigated. The results presented here emphasized the significance of ormosil as a matrix for dissolved oxygen-sensing. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：233 / 238

页数：6

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