I Want to Measure Zeta Potential

Zeta potential is a measure of the magnitude of the repulsion or attraction between particles. Its measurement brings detailed insight into the dispersion mechanism and is the key to electrostatic dispersion control. The measurement of zeta potential is an extremely important parameter across a wide range of industries including brewing, ceramics, pharmaceuticals, medicine, mineral processing and water treatment.

Malvern Instruments’ Zetasizer systems provide objective scientific measurements to help match experience to performance. By measuring fundamental parameters known to affect stability – such as zeta potential, particle size, pH and conductivity, investigators can identify, measure and vary the parameters that determine stability.

When a new suspension or emulsion is formulated, one of the biggest consumers of time is the measurement of the stability of the candidate formulations in a variety of conditions. Zeta potential can be used to test candidate formulations to reject poor examples at an early stage; reducing the cost of the stability study. This can also lead to an understanding of the mechanisms of stability, and hence help with research into product quality improvements.

New formulations of products are required for a number of reasons; legislation changes; unavailability or increase in cost of components; environmental issues or other political or market forces. Speed of introduction of new formulations is the key to product success. Measurement of zeta potential is one of the ways to shorten development times.

Many industries use large quantities of water, which become contaminated during the production process. Dewatering is now becoming important as the cost of disposal increases. Measurement of zeta potential can be used to optimize the use of expensive flocculants and speed up the flocculation process.

I want to measure:

	The zeta potential of particles from 3.8nm to 100µm. - take a look at the Zetasizer Nano Z.
	Both zeta potential (from 3.8nm to 100µm) and particle size (from 0.3nm to 10µm*) - take a look at the Zetasizer Nano ZS.
	Both zeta potential (from 3.8nm to 100µm) and particle size (from 0.3nm to 5µm**) - take a look at the Zetasizer Nano ZS90.