A SHEAR-HORIZONTAL SAW DEVICE AS A PH MONITOR

被引：14

作者：

KONDOH, J ^{[1
]}

SHIOKAWA, S ^{[1
]}

GEORGIEV, Z ^{[1
]}

机构：

[1] BULGARIAN ACAD SCI,INST SOLID STATE PHYS,BU-1784 SOFIA,BULGARIA

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1993年 / 13卷 / 1-3期

关键词：

D O I：

10.1016/0925-4005(93)85419-B

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A shear horizontal surface acoustic wave (SAW) that propagates on 36-degrees rot. Y-cut X-propagating LiTaO3 immersed in a liquid is affected by an acoustoelectric interaction between the piezoelectric potential and the electrical properties of the materials in the liquid. Using the SAW device, pH changes in enzymatic reactions can be detected by the measurement of the SAW velocity change caused by a pH change associated with the reactions. In this paper, preliminary experiments on a urea-urease reaction and the inhibition effect of the butyrylcholine chloride-cholinesterase reaction due to a pesticide are reported.

引用

页码：429 / 431

页数：3