Size separation of silica nanospheres by means of capillary zone electrophoresis

被引：32

作者：

Vanifatova, NG

Spivakov, BY

Mattusch, J

Wennrich, R

机构：

[1] UFZ Helmholtz Ctr Environm Res, Ctr Environm Res Leipzig Halle, Dept Analyt Chem, D-04318 Leipzig, Germany

[2] Russian Acad Sci, VI Vernadskii Inst Geochem & Analyt Chem, Moscow 117975, Russia

来源：

TALANTA | 2003年 / 59卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

capillary zone electrophoresis; silica nanosphere; size separation;

D O I：

10.1016/S0039-9140(02)00523-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The electrophoretic mobility of silica nanospheres was shown to be a function of separation conditions such as pH and phosphate concentration of a carrier electrolyte. The separation selectivity can be controlled by the separation conditions and optimised depending on the sample composition. The effects of pH and phosphate concentration of buffer solutions on the nanosphere electrophoretic mobility are explained using the Overbeek-Booth electrokinetic theory taking into account both electrophoretic retardation and the relaxation effect. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：345 / 353

页数：9

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