摘要
本文讨论将溶胶凝胶作为一种基质来发展独特的传感策略.溶胶凝胶为传感基质的制备和发展提供了无限空间,这种空间得益于基质物理性质的多样性,可以通过改变一些传感器已知的制备条件和合成技术来实现.我们在对传感需求的认真考虑和研究的基础上,开发出了用于一些分析物的新的检测方法,同时发展了它们的应用.溶胶凝胶被用来监测浓强酸([H+]=1～11M),浓强碱([OH-]=1～10M)及采用双传感方法来测定混合溶剂/溶质系统.本文还讨论了使用配体嫁接的块状溶胶凝胶对金属离子进行光学测定.最后介绍了用电化学法和溶胶凝胶修饰的电极来测定六价铬的方法.
The use of sol-gels as a sensing matrix for the development of unique sensing strategies is discussed. Sol-gels offer almost limitless possibilities for sensing substrates due to the variety of physical properties that can be obtained by altering a number of discussed fabrication conditions and techniques. By careful consideration of the sensing requirements, novel detection methods have been developed for a variety of analytes and applications. Here, sol-gels have been used to monitor pH at the extreme ends of the scale （[H^＋] = 1 -- 11 M and [OH^-] = 1 -- 10 M） and in mixed solvent/solute systems using dual sensing approaches. The use of ligand-grafted sol-gel monoliths for optical determination of metal ion species is also discussed. The electrochemical determination of Cr（VI） by electrodeposited sol-gel modified electrodes is also presented.
出处
《中国科学（B辑）》
CSCD
北大核心
2009年第11期1324-1335,共12页
Science in China(Series B)
基金
美国国家科学基金
国家健康研究院资助
Measurement and Control Engineering Center资助
关键词
溶胶凝胶
有机功能
酸
碱
金属离子
sol-gel, organofunctional, acid, base, metal ions
