The NanoBrook Series particle/molecule size and zeta potential analyzers incorporate all you need for fast, routine, sub-micron measurements of size and zeta potential. The instrument incorporates the principles of Dynamic Light Scattering (DLS) for particle sizing and distribution and Doppler Velocimetry (Electrophoretic Light Scattering, or ELS) for zeta potential measurement. The instrument also includes Phase Analysis Light Scattering (PALS) measurements for samples with low mobilities.