Multiinstrument study of the electrophoretic mobility of quartz

被引：40

作者：

Kosmulski, M

Maczka, E

Janusz, W

Rosenholm, JB

机构：

[1] Tech Univ Lublin, Dept Electrochem, PL-20618 Lublin, Poland

[2] Marie Curie Sklodowska Univ, Dept Radiochem & Colloid Chem, PL-20031 Lublin, Poland

[3] Abo Akad Univ, Dept Phys Chem, Turku 20500, Finland

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2002年 / 250卷 / 01期

关键词：

quartz; isoelectric point; zeta potential; silicon IV oxide; electric double layer;

D O I：

10.1006/jcis.2002.8330

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：

The electrophoretic mobility of quartz in 0.01 mol dm(-3) NaCl and NaNO3 over the pH range 2-8 was studied using five different commercial instruments. The mobilities over the pH range 4-8 were relatively consistent, but the mobilities over the pH range 2-4 and the position of the isoelectric point IEP varied from one instrument to another. This result suggests that the discrepancies in the apparent IEP of quartz (and other silicas) reported in the literature are due to the instrument artifacts. (C) 2002 Elsevier Science (USA).

引用

页码：99 / 103

页数：5

共 25 条

[1] Stability of colloidal silica, sikron and polystyrene latex influenced by the adsorption of polycations of different charge density [J].