Particle Metrix GmbH

Am Latumer See 11-13, 40668 Meerbusch
Telephone +49 2150 705679-0
Fax +49 2150 705679-29


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Our range of products

Product categories

  • 04  future technologies
  • 04.09  Applications for nanotechnology

Applications for nanotechnology

Our products

Product category: Applications for nanotechnology


System for characterization of colloids by dynamic light scattering within a size range of 0.8 nm to 10 µm. Suitable for material systems with concentrations from ppm up to 40% vol., depending on substance type. Minimum is 1 droplet.

Particle Size Distributions

The NANO-flex® 180° DLS System measures size distributions in the range of 0.8 nm to 10 µm.

The applied heterodyne 180° back scattering principle of the Nanotrac® is characterised by its high selectivity in the nano-range and is therefore also suitable for samples with broad size distribution. Furthermore, the resolution is impressing. Highly concentrated samples are measured without interfering multiple scattering.

The applied Nanotrac® back scattering in the NANO-flex® is designed as a flexible measuring probe with 8 mm ø. Thus, it can be used in many ways, even in-situ and in the measuring cylinder of the Stabino®!

The 180° DLS–Method

The laser is focused to the sample via an optical fiber and a sapphire window. The window reflects a part of the incoming laser light. Both, laser reflection and scattered light interfere at the detector diode. Due to the excellent signal/noise ratio, there is no need for an expensive detection system.

Benefits of 180° DLS:

  • Shortest light path in the sample (<0.3 µm) implying
           o no multiple light scattering
           o samples from transparent to opaque
  • up to 40% v/v from 0.8 (LOQ) to 10,000 nm
  • size result does not change over decades of sample concentration
  • high dynamic range and high resolution in ONE measurement

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Product category: Applications for nanotechnology


Rapid Particle Charge Titrations and Size Distribution

In many applications, particle charge and particle size characterise the behaviour of a dispersion. The Stabino® - NANO-flex® System is derived from the StabiSizer® - analysis instrument. It provides higher flexibility and is applicable to colloids with particle sizes between sub-nm and 100 µm. Measurements at concentrations up to 40% are possible.

The Particle Interface Potential, like the streaming potential measured in Stabino®, represents the degree of electrostatic repulsion between particles and reacts to pH, conductivity and the poly-electrolyte surrounding, respectively. Any or all of these parameters can cause a material system to shift. The titration result is characteristic for the sample in a certain chemical environment. A charge titration with the Stabino® specifies which parameters require special attention.


The sensitivity of the streaming potential depends on surface area. This criteria may be used to follow changes in surface area, as it happens in milling processes. Secondly, the smaller the particles are, the more sensitive the method is.

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About us

Company details

PARTICLE METRIX GmbH develops and manufactures instruments to characterize colloids. The size of macromolecules and particles forming these colloid liquids covers an impressing range from 0.3 nm up to 300 µm. Optical Particle Tracking, 180° dynamic light scattering, streaming potential charge mapping are the methods to deliver answers on dispersion stability, zeta potential, charge density, particle size, molecular weight and concentration. We detect scattered and fluorescent light as well as electrical streaming potential signals.

The products are made in Germany and are distributed worldwide.

PARTICLE METRIX is certified under DIN EN ISO 9001. References in research and industry testify the reliability of our products and our competence.

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Company data

Sales volume

1-9 Mio US $

Export content

max. 25%

Number of employees




Area of business

future technologies