It is also by far the most widely used light scattering technique for particle characterization in the academic world. Recent years have seen many advancements in light scattering technologies for particle characterization.įor particles in the lower nanometer to lower micrometer range, dynamic light scattering (DLS) has now become an industry standard technique. Particle size analysis based on light scattering has widespread application in many fields, as it allows relatively easy optical characterization of samples enabling improved quality control of products in many industries including pharmaceutical, food, cosmetic, and polymer production. Particle size analysis based on light scattering The particle size can have considerable importance in a number of industries including the chemical, food, mining, forestry, agriculture, cosmetics, pharmaceutical, energy, and aggregate industries. The particle size measurement is typically achieved by means of devices, called Particle Size Analyzers (PSA), which are based on different technologies, such as high definition image processing, analysis of Brownian motion, gravitational settling of the particle and light scattering ( Rayleigh and Mie scattering) of the particles. Particle size analysis is part of particle science, and it is generally carried out in particle technology laboratories. Particle size analysis, particle size measurement, or simply particle sizing, is the collective name of the technical procedures, or laboratory techniques which determines the size range, and/or the average, or mean size of the particles in a powder or liquid sample. For subatomic particles, see particle physics. This article is about particulate solids.
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