Title: New Measurement Method of Complex Electrophoretic Mobility of Charged Colloids by Quasi-Elastic Light Scattering
Abstract:A new measurement method of complex electrophoretic mobility µ * of colloidal particles in suspension was developed using a heterodyne technique of quasi-elastic light scattering under a sinusoidal el...A new measurement method of complex electrophoretic mobility µ * of colloidal particles in suspension was developed using a heterodyne technique of quasi-elastic light scattering under a sinusoidal electric field. The influence of diffusion was removed by squaring the time-domain signal of scattered light and we succeeded in accurate and highly sensitive measurement of µ * in a wide frequency range for the first time. The frequency dependence of µ * of latex particles was measured up to 50 kHz by this method. The relaxation of mobility due to anomalous double-layer polarization was observed above 1 kHz in the obtained spectrum.Read More
Publication Year: 2000
Publication Date: 2000-11-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 2
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