Zetasizer nano ZS

Dynamic light scattering (DLS) is a non-invasive, well-established technique for measuring the size and size distribution of molecules and particles typically in the submicron region. Typical applications of dynamic light scattering are the characterization of particles, emulsions or molecules, which have been dispersed or dissolved in a liquid. The Brownian motion of particles or molecules in suspension causes laser light to be scattered at different intensities. Analysis of these intensity fluctuations yields the velocity of the Brownian motion and hence the particle size using the Stokes-Einstein relationship.