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Microtrac MRB’s NANOTRAC Wave II / Q / Zeta is a highly flexible Dynamic Light Scattering (DLS) analyzer which provides information on particle size, zeta potential, concentration, and molecular weight. It allows faster measurements with reliable technology, higher precision, and better accuracy. All of this combined into a compact DLS analyzer with a revolutionary fixed optical probe.

With the unique and flexible probe design and the use of the Laser Amplified Detection method in the NANOTRAC Wave II / Q / Zeta, the user is able to choose from a wide array of measurement cells that satisfy the needs of any application. This design also allows measurements of samples over a wide concentration range, monomodal or multimodal samples, all without prior knowledge of the particle size distribution. This is made possible through the use of the Frequency Power Spectrum (FPS) method instead of classical Photon Correlation Spectroscopy (PCS).

Key Features

  • 180° backscatter DLS setup
  • Stable fixed optics sample interface – no adjustments required
  • Rapid field reversal prevents electro-osmosis
  • Robust mobility calculation as a function of power spectrum ratio
  • High concentration zeta potential measurements
  • Sample concentration and molecular weight determination
  • Universal solvent compatibility
  • Frequence Power Spectrum calculation model instead of PCS
  • Laser Amplified Detection – high signal to noise ratio

Technical Specifications

Method Backscattered laser-amplified scattering reference method
Measurement angle 180°
Measuring range 0.3 nm - 10 µm
Electrophoretic mobility 0 - 15 (µm/s) / (V/cm)
Temperature range +4°C - +90°C
Temperature accuracy ± 0.1°C
Temperature control range +4°C - +90°C (sample cells)
+4°C - +70°C (PE cuvette)
+4°C - +90°C (glass cuvette)
Sample concentration up to 40 % (sample dependent)
Carrier fluids Water, polar and unpolar organic solvents, acid and base (cuvette-depending with WAVE II Q)
Laser 780 nm, 3 mW; 2 laser diodes with zeta
Humidity 90 % non-condensing

Nanoparticle Size Analyzer Nanotrac Flex

Microtrac MRB

A leader in particle characterization

In 2020, the leading companies for particle characterization, RETSCH Technology, Microtrac and MicrotracBEL united and became one powerful brand: Microtrac MRB!

All three companies share a passion for making particle analysis more accurate, more effective and more convenient in order to exceed customers' expectations. Together, we at Microtrac MRB will continue to find superior solutions for every application and provide the best customer service!