The Malvern ZEN3600 (Zetasizer Nano ZS “top” configuration) is a multi-measurement instrument. In practice, it’s used for:

Particle / molecular size (hydrodynamic diameter) via DLS (Dynamic Light Scattering)
Zeta potential (surface charge / electrophoretic mobility) via ELS (Electrophoretic Light Scattering)
Molecular weight (typically via SLS / Debye plot methods, depending on sample & software options)


Configured with Autosampler, PC and software. Unit is in great working condition.