Patent ID: 7009169
Filing Date: 2006-03-07
Classification: G01N

Abstract:
1. A method for measuring a particle size distribution of a population of particles using a light scattering particle sizing instrument having a plurality of selectable imaginary component values of the refractive index, and the method comprising the steps of: (i) providing a population of the particles; (ii) determining a real component of the refractive index of the particles; (iii) determining an imaginary component of the refractive index of the particles, wherein the method of determining the imaginary component of the refractive index of the particles comprises the steps of: iv) determining the particle size distribution of the particles by the light scattering particle sizing instrument wherein the particle size distribution is determined using the real component of the refractive index measured in step (ii) and the imaginary component of the refractive index determined in step (iii).