Andrea Samolejová

Optical parameter adjustment for silica nano- and micro-particle size distribution measurement using Mastersizer 2000

This paper deals with adjustment of certain optical parameters of nano and micro-structured particles of silica by which Mastersizer 2000 as a device for size distribution particle measurement has been used. The optical method process may be used by looking for unique refractive and absorption index of investigated particles. Optical properties, i.e. refractive index and absorption index of the silica have been found and related to inter-particle silica bindings in the form of Hamaker constants. For the optical properties calculations using the Mastersizer 2000 Mie Scattering solutions representing the electric and magnetic induction, i.e. silicas permeability and permittivity from Maxwells equations have been exercised.