Maximum separation-distance for a separated-electrode piezoelectric sensor: application to the determination of cationic surfactant adsorbed onto quartz surface

被引：6

作者：

Shen, DZ ^{[1
]}

Kang, Q

Xue, YH

Chen, LX

Wang, LZ

机构：

[1] Shandong Univ, Chem Coll, Jinan 250100, Peoples R China

[2] Shandong Inst Min & Technol, Taian 270019, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1998年 / 50卷 / 03期

关键词：

piezoelectric sensor; quartz crystal; adsorption; surfactant;

D O I：

10.1016/S0925-4005(98)00246-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In a separated-electrode piezoelectric sensor (SEPS), the two excitation electrodes are separated by solution layers. The oscillation ability of the SEPS depends obviously on the separation-distance between the two excitation electrodes. In a given solution, there is a maximum separation-distance (D-max) for the SEPS. If the separation-distance is > D-max, operation of the SEPS is not stable or even ceases to oscillate. The dependence of D-max value on conductivity of solution was investigated and explained. The SEPS was applied for the determination of the adsorption density of dicetyldimethyl-ammonium bromide onto quartz surface. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：253 / 258

页数：6