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Particle Sizing Reproducible Analysis of Particle Shape and Size

Editor: MA Alexander Stark

Whether in the field of production and quality control, research, development or the analytical laboratory, particle measurement is essential in many areas. This requires reproducible results, as with the Fritsch Particle Sizers.

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Fritsch offers new analysis solutions for particle sizing in three single steps.
Fritsch offers new analysis solutions for particle sizing in three single steps.
(Source: Fritsch)

Choosing the right particle sizers is not always easy and must be specially adapted to the application. One can distinguish between different measuring principals. On the one hand for example the Static Light Scattering, ideal for particle sizing from 0.01 to 3800 µm. On the other hand for example Dynamic Image Analysis, for analysis of particle shape and size in an extra wide measuring range of 20 µm to 20 mm.

With the completely revised Analysette 22 Next users can choose according to their requirements: The Analysette 22 Next Micro with a measuring range of 0.5 to 1500 μm for all typical measurement tasks or the high-end instrument Analysette 22 Next Nano with an extra wide measuring range of 0.01 to 3800 μm for maximum precision and sensitivity for smallest particles with an additional detector system. The two models are suitable for especially efficient particle size analysis — in production and quality control as well as in research and development or for controlling manufacturing processes. Both models feature especially easy operation and cleaning, short analysis times, reliably reproducible results and the recording of additional parameters such as temperature and pH value during wet dispersion, the company states.


The dispersion unit of both models is particularly durable and practically maintenance-free. The complete absence of valves and movable seals in the sample circuit ensures that there are no dead spaces for sample material to settle. The powerful, adjustable-speed centrifugal pump distributes the sample uniformly in the entire circuit for stable measurements. To measure samples tending to agglomerate, simply add the optionally available high-performance ultrasonic box to the sample circuit.

The Analysette 28 Image Sizer is designed for applications that require accurate and reproducible measuring results for both particle shape and size of powders and bulk solids as well as of suspensions and emulsions. The optical process of Dynamic Image Analysis provides results for a wide measuring range, delivers multiple shape parameters and evaluation possibilities for particle size. The measuring time depending on the sample quantity, is under 5 minutes. And the result is available immediately. The Image Sizer in combination with the corresponding wet dispersion unit is ideal for measurement of particle shape and size of suspensions and emulsions. Wet dispersion is particularly suitable for fine particles, poorly flowing, fine-agglomerating or sticky materials, which do not react in water or other liquids. The Analysette 28 Image Sizer ensures fast analysis of particle size and shape of dry, free-flowing materials. Via the optical analysis of the particle shape and particle size, users can identify damaged particles, contaminates, agglomerates or oversized and undersized particles accurately and fast and view them completely uncomplicated in single images.