Studying the size/shape separation and optical properties of silver nanoparticles by capillary electrophoresis

Fu Ken Liu, Fu-Hsiang Ko, Pei Wen Huang, Chien Hou Wu, Tieh Chi Chu

研究成果: Article同行評審

155 引文 斯高帕斯(Scopus)

摘要

This paper describes the feasibility of employing capillary electrophoresis (CE) to separate silver particles in nanometer regimes. We have found that the addition of an anionic surfactant, sodium dodecyl sulphate (SDS), to the running electrolyte prevents coalescence of the silver particles during the process, which improves the separation performance; the concentration of SDS required for optimal silver nanoparticle separation is ca. 20 mM. By monitoring the electropherograms using a diode-array detection (DAD) system, we have also investigated the separation of suspended silver nanorods with respect to their shapes. Our results demonstrate that the combination of CE and DAD is a powerful one for the separation and characterization of various silver nanoparticles.

原文English
頁(從 - 到)139-145
頁數7
期刊Journal of Chromatography A
1062
發行號1
DOIs
出版狀態Published - 7 1月 2005

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