The purpose of this guide is to demonstrate the proper method for preparing a zeta potential validation sample used for checking the performance of the NanoBrook ZetaPlus, ZetaPALS, 90PlusPALS, and Omni instrumentation. The BI-ZR5 validation material is a dark blue, inorganic powder that is insoluble in water. It has a mean particle size of approximately 300 nm.
Included in this guide are two filtration methods to ensure that there are no dust particles in the solution used for the performance verification.
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