BlendPack Innovation
Malvern - Micron Analizer - Zetasizer Nano-ZS - ZEN3600
Malvern - Micron Analizer - Zetasizer Nano-ZS - ZEN3600
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Malvern - Micron Analizer - Zetasizer Nano-ZS
Zeta-potential may be measured in the range of 3.8nm to 100um.
The flow mode option enables the system to be connected to an SEC or an FFF system to use as a detector for the size of proteins or nanoparticles.
The MPT-2 Autotitrator (not included) allows the study of the effect of changes in pH, conductivity, or any additive to be automated.
Dynamic Light Scattering (DLS) is used to measure particle and molecule size. This technique measures the diffusion of particles moving under Brownian motion, and converts this to size and a size distribution using the Stokes-Einstein relationship. Measurement of size as a function of concentration enables the calculation of kD, the DLS interaction parameter.
Laser Doppler Micro-electrophoresis is used to measure zeta potential. An electric field is applied to a solution of molecules or a dispersion of particles, which then move with a velocity related to their zeta potential. An available surface zeta potential accessory uses tracer particles to measure electro-osmosis close to a sample surface to calculate the zeta potential of the surface.
Static Light Scattering is used to determine the molecular weight of proteins and polymers. In this technique, the scattering intensity of a number of concentrations of the sample is measured, and used to construct a Debye plot. From this the average molecular weight and second virial coefficient A2 can be calculated, which gives a measure of molecule solubility.
Manufactured Dec 2019 - minimal useShare
