A convenient apparatus to determine the zeta potential of grains by electro-osmosis

被引：11

作者：

Bouriat, P

Saulnier, P

Brochette, P

Graciaa, A

Lachaise, J ^{[1
]}

机构：

[1] Univ Pau & Pays Adour, LTEMPM, Pau, France

[2] GRL Elf Atochem, Lacq, France

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1999年 / 209卷 / 02期

关键词：

zeta potential; electro-osmosis; packed bed; porous plug; surface conductance;

D O I：

10.1006/jcis.1998.5902

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A simple experimental setup for the measurement of electroosmotic how through porous media by direct weighing is described. Potential instead of current measurement allows the determination of zeta potential, even in the presence of significant surface conduction. Flow equations valid for porous media composed of monodisperse spheres are used successfully for isotropic packed beds made with randomly shaped and sized Nylon grains. The measured zeta potentials are in agreement with those deduced from electrophoresis. (C) 1999 Academic Press.

引用

页码：445 / 448

页数：4

共 17 条

[1] ELCTROOSMOSIS AT MICROPOROUS MEMBRANES AND THE DETERMINATION OF ZETA-POTENTIAL [J].