Characterization of Particles by means of Laser light Diffraction and Dynamic Light Scattering

摘要

The laser light diffraction uses scattering of light, arising from the disturbance of the propagation of light waves due to their interaction with particles, to determine the particle size and the particle size distribution. Laser light diffraction analysis equipment is able to characterize particulate systems in the range from 0.5 μm up to 3500 μm. The principle of dynamic light scattering takes advantage of the fluctuation of scattered light intensities due to the Brownian motion of particles in the submicron range.