DOPED SOL-GEL GLASSES AS PH SENSORS

被引:103
作者
ROTTMAN, C
OTTOLENGHI, M
ZUSMAN, R
LEV, O
SMITH, M
GONG, G
KAGAN, ML
AVNIR, D
机构
[1] HEBREW UNIV JERUSALEM, DEPT ENVIRONM SCI, IL-91904 JERUSALEM, ISRAEL
[2] STAR TECHNOL, SUDBURY, MA USA
关键词
D O I
10.1016/0167-577X(92)90055-O
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A series of pH indicators were trapped in sol-gel porous glasses by polymerization of tetramethoxysilane in the presence of a surface active agent. The properties of these novel sensing materials including spectral shifts, shifts in the pH-sensing range, cycle repeatability, leachability, rates of response and isosbestic points are described. A prototype of a pH meter based on a pH-sensing glass was constructed.
引用
收藏
页码:293 / 298
页数:6
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