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Particle scattering apparatus

One way to increase the range of measurement may be in the use of light scattering (Doppler electrophoresis) to determine particle velocities. Such methods are used in contemporary commercially available analytical particle electrophoresis apparatuses. However, presently available equipment is not designed for ready exchange (replacement) of chamber surfaces for electro-osmosis studies. [Pg.126]

FIGURE 26.6 Nanoparticle morphology. Malvern 4700 dynamic light-scattering apparatus average particle size analyzed by SEM and light scattering. [Pg.385]

Figure 4. Temperature dependence of the PNIPAM colloid diameter and turbidity. The diameter was determined using a commercial quasielastic light scattering apparatus (Malvern Zetasizer 4). The turbidity was measured for a disordered dilute dispersion of these PNIPAM colloids by measuring light transmission through a 1.0 cm pathlength quartz cell with a UV-visible-near IR spectrophotometer. Solids content of the sample in the turbidity experiment was 0.071%, which corresponds to a particle concentration of 2.49 x 10 spheres/cc. Also shown is the temperature dependence of the turbidity of this random colloidal dispersion. The light scattering increases as the particle becomes more compact due to its increased refractive index mismatch from the aqueous medium (76) (Adapted from ref 16). Figure 4. Temperature dependence of the PNIPAM colloid diameter and turbidity. The diameter was determined using a commercial quasielastic light scattering apparatus (Malvern Zetasizer 4). The turbidity was measured for a disordered dilute dispersion of these PNIPAM colloids by measuring light transmission through a 1.0 cm pathlength quartz cell with a UV-visible-near IR spectrophotometer. Solids content of the sample in the turbidity experiment was 0.071%, which corresponds to a particle concentration of 2.49 x 10 spheres/cc. Also shown is the temperature dependence of the turbidity of this random colloidal dispersion. The light scattering increases as the particle becomes more compact due to its increased refractive index mismatch from the aqueous medium (76) (Adapted from ref 16).
Oka, K., Otani, W., Kameyama, K., Kidai, M., Takagi, T., Development of a High-performance Electrophoretic Light Scattering Apparatus for Mobility Determination of Particles with Their Stokes Radii of Several Nanometers, Appl. Theoretical Electrophoresis, 1990, 1, 273-2IS. [Pg.342]

Fig. 14-9. Rutherford s apparatus for observing the scattering of alpha particles by a metal foil. (The entire apparatus is enclosed in a vacuum chamber.)... Fig. 14-9. Rutherford s apparatus for observing the scattering of alpha particles by a metal foil. (The entire apparatus is enclosed in a vacuum chamber.)...
Figure 2. Flans Geiger s apparatus for studying the scattering of a particles as depicted in his 1908paper (27) (top) and in reference (26) (bottom). Figure 2. Flans Geiger s apparatus for studying the scattering of a particles as depicted in his 1908paper (27) (top) and in reference (26) (bottom).
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See also in sourсe #XX -- [ Pg.99 , Pg.198 ]



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Particle scattering

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