#Dynamic light scattering zeta potential pro#

The primary result from a zeta potential measurement is the electrop- horetic mobility which is then used to calculate the zeta potential using the equation: p hn/f Where: p. For challenging samples with high electrical conductivity that are prone to generating bubbles, the analyzer can be used in conjunction with the DelsaMax ASSIST module. Zeta potential Zeta potential is analyzed by applying an electric field to the suspension and measuring the speed and direction of the particle motion. The analyser also utilises a flow cell system requiring only 170 μL of sample, and can be used in-line with industry standard auto-samplers for analysis of multiple formulation samples. Four measuring mode are Dynamic Light Scattering (DLS), Static Light Scattering (SLS), Electrophoretic mobility (LDE) and Zetapotential (LDE). This instrument (Malvern Zetasizer Nano ZS and Zeta Potential) measures the size (0.6 nm to 6000 nm) and zeta. The Assist accessory provides pressurisation of the measurement cell to eliminate gas bubble formation which further improves reliability and reproducibility on samples prone to gassing. Dynamic Light Scattering with Zeta Potential. Rapid detection helps prevent sample degradation that can occur in other slower Zeta potential instruments due to the prolonged exposure of the sample to intense electric fields. The incredible speed of the analyzer comes in part from its 32-detector array, which allows sensitive detection of particle motion in response to the applied electric field. Using 32 detectors for zeta potential measurement and a separate detector for sizing the DelsaMax is able to measure zeta potential on samples as low in concentration as the equivalent of 1mg/ml Lysozyme. Utilises Dynamic Light Scattering (DLS, sometimes referred to as Quasi-elastic Light Scattering QELS) to determine molecular size simultaneously with Phase Analysis Light Scatter (PALS) to determine Zeta Potential. Ideal for proteins, carbon nanotubes suspensions and emulsions, the speed of analysis means delicate samples such as proteins are not perturbed by the analysis resulting in more reliable and reproducible data. In the scope of DLS, temporal fluctuations are usually analyzed using the intensity or photon auto-correlation function (also known as photon correlation spectroscopy or quasi-elastic light scattering).

#Dynamic light scattering zeta potential pro#

DelsaMax Pro Allows simultaneous analysis of both particle size and zeta potential from sample volumes as small as 45 μL in as little as one second. Dynamic light scattering (DLS) is a technique in physics that can be used to determine the size distribution profile of small particles in suspension or polymers in solution.