The Zetasizer Ultra, the most advanced light scattering system, delivers enhanced resolution, speed and ease-of-use for the measurement of particle and molecular size, particle charge and particle concentration.
Alongside the patented Non-Invasive Back-Scatter (NIBS) technology, the Zetasizer Ultra offers Multi-Angle Dynamic Light Scattering (MADLS®) which automates multiple-angle size measurements, providing higher resolution and more complete particle size distributions. MADLS also enables calibration-free particle concentration analysis for a wide range of materials, resolving the individual concentrations of different size populations to provide even greater insight into your samples.
The ZSP also incorporates a zeta potential analyzer that uses electrophoretic light scattering for particles, molecules and surfaces, and a molecular weight analyzer using static light scattering.
Parameters measured:
Particle and molecule size, translational diffusion, electrophoretic mobility, zeta potential of particles at high and low concentrations, viscosity and viscoelasticity of protein and polymer solutions, concentration, MW, A2, kD.
- Size measurement from 0.3nm (diameter) to 10 microns using patented NIBS (Non-Invasive Back Scatter) technology.
- Zeta potential using patented M3-PALS technology.
- Molecular weight measurement down to 980Da.
- Microrheology option to measure viscosity and viscoelasticity.
- Protein size measurement as dilute as 0.1mg/mL (Lysozyme).
- Sample concentrations from 0.1ppm to 40%w/v.
- Optional protein calculators, including protein charge, A2, kD, and molecular shape.
- A ‘Quality Factor’ and ‘Expert Advice System’ gives the confidence of having an expert at your shoulder.
- 21CFR part 11 software option to enable compliance with ER/ES.
- Research software option to give access to further features and analysis algorithms for the light scattering specialist.
- Automation of measurements using an autotitrator option.
- Optional flow mode capability to enable use as a GPC / SEC size detector.
- Alternative laser, 50mW at 532nm for samples incompatible with the standard 633nm laser.
- Optical filter option to improve measurements with fluorescent sample.
- Temperature range extension option to 120ºC.
