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Zetasizer Ultra

The all new Zetasizer Ultra with MADLS & concentration measurements

This flagship instrument enjoys all the benefits afforded by the Zetasizer Pro with ZS Xplorer software, in terms of ease of use, analysis speed and data confidence, and also offers two unique measurement capabilities: Multi-Angle Dynamic Light Scattering (MADLS®) and Particle Concentration, to offer even greater insight into your samples.

 

 

MADLS youtube         Zetasizer Ultra brochure       Size & Concentrations

An extension to MADLS affords the ability to directly analyze particle concentration. The measurement of particle concentration is calibration-free, suitable for a wide range of materials, requires no or little dilution, and is quick to use – all of which make it ideal as a screening technique.  This is a unique capability of the Zetasizer Ultra which can even be applied to samples such as viruses and VLPs, which were previously very challenging to measure. 

The Zetasizer Ultra also provides the highest sensitivity zeta potential and electrophoretic mobility measurements using M3-PALS technology.  Our affordable disposable folded capillary cells enable measurements in extremely low volumes, without direct sample-electrode contact, using our patented diffusion barrier method.  The information provided by these measurements is an excellent indicator of sample stability and/or propensity to aggregate.

The addition of Constant Current Mode for measuring electrophoretic mobility and zeta potential in high conductivity media reduces errors that can be associated with electrode polarization at higher ion concentrations.

  • Multi-Angle Dynamic Light Scattering (MADLS) scheme for absolute confidence in particle and molecular size distribution analysis
  • NIBS optics for versatile, high sensitivity, particle, and molecular size measurements
  • Simple, calibration-free particle concentration measurements
  • Disposable capillary sizing cell provides the ultimate in non-destructive, low volume (down to 3 µL) analysis, with an upper size range that extends to 10 μm
  • M3-PALS with Constant Current Mode for zeta potential and electrophoretic mobility measurements
  • ZS Xplorer software suite for simple and flexible method set-up and data analysis
  • Adaptive Correlation for faster, more reproducible sizing measurements with less sample preparation
  • Deep Learning empowered data quality system for assessment of any size data quality issues, with clear advice on how to improve results
  • Optical filter wheel with fluorescence filter to allow measurement of fluorescent samples without impairing overall system sensitivity.  Also includes polarization filters for DDLS measurements.