Nanoptic 90 Plus


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Nanoptic 90 Plus – Particle size measurement of nanoparticles (0.4 nm to 9.0 µm)

The Nanoptic 90 Plus is an instrument based on the principle of dynamic light scattering (DLS) for the analysis of particle size distributions of nanoparticles. It is possible to detect particles starting from a particle size of 0.4 nm. The high-power laser and the ultra-sensitive Avalanche photodiode (APD) detector guarantee fast and accurate measurement results. Due to reliable and consistent measurement results with high resolution and repeatability over a broad size range, the Nanoptic 90 Plus covers a wide range of applications in the fields of chemistry, biochemistry, pharmaceuticals and medicinal chemistry, home and personal care, paints, inks and coatings, metallic and non-metallic colloids, and many more.

Key Benefits

  • Precise measurement of extremely small particles < 1 nm (e.g. vitamin B1) under high dilution (e.g. 5 wt.%)
  • Reliable measurement of large particles (e.g. 5 µm polystyrene latex)
  • High resolution with several evaluation algorithms
  • Excellent repeatability (< 1 %)


  • Measuring range: 0.4 nm – 9.0 µm
  • Measuring principle: dynamic light scattering (DLS)
  • Measuring time: < 5 min
  • Disposable and glass sample cells with volume from 40 µl to 1.5 ml available
  • Extended temperature control range: -10 °C – 110 °C +/- 0.1 °C, precise temperature control with an accuracy of ± 0.5 °C
  • Determination of Hydrodynamic diameter, Polydispersity index, Diffusion coefficient, Dynamic virial coefficient, Molecular weight and solution viscosity
  • Intensity, volume, area and number particle size distributions
  • Simple operation and intuitive software interface

Literature and Norms

/1/ ISO 13321 Particle size analysis – Photon correlation spectroscopy

Other instruments

Bettersizer S3 series Static light scattering and Dynamic image analysis 0.01 – 3,500 µm
Bettersizer 2600 Static light scattering 0.02 – 2,600 µm
Bettersizer ST Static Light Scattering 0.1 – 1,000 µm
BeVision D2 Dynamic image analysis 2 µm – 10,000 µm
DT-100 Acoustic attenuation spectroscopy 5 nm – 1,000 µm
DT-1202 Acoustic attenuation spectroscopy 5 nm – 1,000 µm


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