Monitoring the presence of nano-particles in liquid dispersions with a broad particle size distribution presents a challenge because larger particles could mask nano-particles in many size measuring techniques.  A study using the DT-1201 acoustic attenuation spectrometer investigated how this technique responds to the presence of sub 100 nm zinc oxide.

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Application Note AN171 on Monitoring Nano-particles in the Presence of Large Particles using Acoustics (You need to be logged in).

Particle size analysis is so important to the fertilizer industry that a minimum frequency of measurements must be made to assure proper quality.  For many years the traditional technique used for particle size analysis of fertilizers has been sieving, but companies are now looking for more efficient, cost effective measurement tools.  Any technique and tool considered for replacing sieving must have the ability to match the historic sieve results, but provide gains in speed, ease of use and the quality of data generated.  The CAMSIZER is just such a tool and has replaced sieve techniques at fertilizer plants around the world.  This Application Note explains how the CAMSIZER has been used in the fertilizer industry to great effect.

Application Note AN172 on Particle Size and Shape Analysis of Fertilizers using Digital Image Analysis (You need to be logged in).