Litesizer 500: Combining Particle Size, Zeta Potential, and Refractive Index Measurements In One Instrument
The refractive index of the solvent is an extremely important parameter in performing accurate dynamic light scattering (DLS) and electrophoretic light scattering (ELS) measurements on particles in solution. This dimensionless number describes how light propagates through a substance. While the refractive index of many solvents has been previously measured and published, it is important to note that the refractive index is strongly dependent on light frequency and, to an extent, on temperature.
Dr. Vinod Radhakrishnan is a Senior Product Specialist with the Advanced Technical Center at Anton Paar USA. Dr. Radhakrishnan’s areas of expertise includes surface charge and zeta potential, particle sizing using light scattering and laser diffraction, and surface area and porosity. Dr. Radhakrishnan holds a Ph.D. in Chemical Engineering from Auburn University.
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