Isoelectric Point (IEP)

Isoelectric Point

The isoelectric point (IEP) of a dispersion is the pH value where the zeta potential equals zero. This is the condition that is least stable and frequently leads to agglomeration for suspensions and phase separation for emulsions. Determining the IEP is a common zeta potential application for the Nicomp DLS particle size and zeta potential analyzer.

PSS Isoelectric Point (IEP)

 

Read the sections below for additional information on this application.