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BETTERSIZE WIKI

Basic Concepts of Particle Characterization

Static and Dynamic Image Analysis

Laser Diffraction Particle Size Analysis

How are particles dispersed when using the wet method?How are particles dispersed when using the dry method?What is obscuration?What is the background signal?What are refractive index and absorption coefficient?What are the factors that affect background?What is the effect of refractive index on laser diffraction particle size analysis?What are the commonly used dispersion media and their requirements?What are the requirements of the water used for laser diffraction particle size analysis?How to choose a proper obscuration range?

Powder Characterization Analysis

What is bulk density, tapped density and how to measure them?What is the compressibility and Hausner ratio?What is the angle of repose, angle of fall, and angle of difference?How to measure angle of repose?What is flowability of powder?

Nanoparticle Size and Zeta Potential Analysis

What is dynamic light scattering (DLS)？What is DLS backscattering technique?What is zeta potential？What is electrophoretic light scattering(ELS)?What is static light scattering (SLS)?

Optical Particle Counting Analysis

What are the advantages of the combination of light extinction and light scattering techniques?How to calculate the number of particles and measure the particle size with the optical particle counter?What is a flat top laser beam?Is laser beam shaping necessary for optical particle counting and sizing?What is the effect of the sample flow velocity on the measurement accuracy?