Multiinstrument study of the electrophoretic mobility of fumed silica

被引：37

作者：

Kosmulski, M

Hartikainen, J

Maczka, E

Janusz, W

Rosenholm, JB

机构：

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

[2] Univ Lublin, Dept Radiochem, PL-20031 Lublin, Poland

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

来源：

ANALYTICAL CHEMISTRY | 2002年 / 74卷 / 01期

关键词：

D O I：

10.1021/ac015584h

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Although silica is one of the most common adsorbents, the position of its isoelectric point (IEP) on the pH scale remains an open question. Different values from I to 4 have been published, and there is even a controversy about the very existence of the IEP. The discrepancies in the literature are at least partially due to application of different instruments. Different zetameters produce different zeta potentials of silica in the acidic range and different IEP.

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页码：253 / 256

页数：4

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