Dispersion Technology Inc., was established in 1996 for developing analytical  instrumentation suitable for characterizing concentrated complex liquid systems, such as slurries, pharmaceuticals, cement, ceramics, paints, emulsions, and many more. Since that time we have designed and are currently marketing worldwide a family of such instruments that are based on ultrasound, (see products page for these models). Ultrasound turned out to become a very versatile tool yielding information not only on particle size and zeta potential, but variety of parameters characterizing these complex systems, such as compressibility, longitudinal viscosity, micro-viscosity, surface conductivity, electric charges of macromolecules, etc. These methods can be applied for characterizing zeta potential not only in liquid particulates but in porous bodies as well.  

We also use conductivity measurements, aqueous and non-aqueous, for peculiar purposes. Our non-aqueous conductivity probe can be used for monitoring ionic composition and surfactant content in low and non-polar liquids.  Our high frequency aqueous conductivity probe yields information for calculating porosity of porous materials or volume fraction of solids in dispersions.  

We have 5 issued and 2 pending USA Patents.  Our customers have published over 50 papers in leading scientific journals, see bibliography and applications There are numerous newsletters presenting some results collected during 15 years in our lab.  All of our achievements in this field have been summarized in two Edition of the scientific book published by Elsevier in 2010 (see a photo on left hand side).  

IMPORTANT NOTE. When comparing our instrument with competing technologies / instruments claiming the same functionality, PLEASE be aware of necessity of having verification tests. Equilibrium dilution test is the most appropriate for characterizing concentrated systems. The tested instrument should provide the same value of the particle size and zeta potential for various volume fraction of the same concentrated system, IF dilution performed with the equilibrium supernate. Failure to provide such tests from the highest to the lowest limit of the claimed concentration range, means that such instrument is not validated.

IMPORTANT NOTE. PLEASE, be aware of the importance of PRECISION and ACCURACY data for any instrument. Such information should be provided as validation of proper performance of said instrument.

As far as we know we are the only one company that has performed and published results of such tests for sizing and zeta potential within the range 1 – 50 % vl, as of January 3, 2012.