Litesizer Series - Instrument Specifications

This application report details the protocols and results used to validate the specifications of the Litesizer series instruments and its measurement cells.

Dynamic light scattering (DLS) is a technique for measuring the size of particles in a liquid dispersion. Such particles undergo random or Brownian motion, the speed of which is directly related to the size of the particles - the smaller the particle, the faster it moves. When light passes through a particle dispersion, the movement of the particles results in fluctuations in the intensity of scattered light. Detection and analysis of the light-scattering fluctuations over time enables the calculation of particle size via the Stokes-Einstein equation. The following DLS specifications were established for Anton Paar’s Litesizer Series instruments.

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