Electrooptic and conductometric effects in colloids and suspensions in sinusoidally amplitude modulated sine-shaped electric fields

被引：9

作者：

Trusov, AA ^{[1
]}

Vojtylov, VV ^{[1
]}

Zernova, TY ^{[1
]}

机构：

[1] St Petersburg State Univ, Dept Phys, St Petersburg 198904, Russia

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2002年 / 201卷 / 1-3期

关键词：

size distribution function; electro-optical method; conductivity anisotropy; weak fields;

D O I：

10.1016/S0927-7757(01)00696-3

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：

It has been shown that the usage of weak sinusoidal electric fields with sinusoidal amplitude modulation in studies of electroorientational effects in colloids and suspensions make it possible to determine the particle size distribution and investigate their induced and permanent dipole moments. This method is designed for study of disperse systems with high electroconductivity including biocolloids, cell-like suspensions and solutions of macromolecules. In this paper the results of experiments on polydispersity of aqueous colloid of palygorskite and aqueous suspensions of E. coli and Ps. fluorescens are presented. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：31 / 40

页数：10