The NanoPlus from Micromeritics is a unique instrument that utilizes photon correlation spectroscopy and electrophoretic light scattering techniques to determine particle size and zeta potential.
The instrument can measure the particle size of samples suspended in liquids in the range of 0.1 nm to 12.3 μm with sample suspension concentrations from 0.00001% to 40%, and a sensitivity for molecular weight to as low as 250 Da. Duel correlators, log-scale for larger particles prone to time decay and linear scale for small particles, provide high sensitivity measurements in multicomponent samples.
This instrument also has the ability to perform highly accurate zeta potential measurements of concentrated solutions. Patented FST technology utilizes a transparent electrode to minimize path length and reduce multiple scattering effects. This technology permits accurate zeta potential measurement in a wide concentration range of 0.001 to 40%, unique to the NanoPlus, eliminating the need to dilute samples.
The NanoPlus negates the effects of electroosmosis by measuring zeta potential at five different locations within the cell. As a result, the instrument can calculate and accurately measure true electrophoretic mobility, resulting in a highly accurate determination of zeta potential. This also provides the ability to determine multi-modal distributions of zeta potential mixtures.
The NanoPlus is compact and easy to use with an extended analysis range, intuitive software, and multiple sample cells to fit the user’s application. The instrument is available in three model configurations: the NanoPlus-1 – nano particle sizing instrument; NanoPlus-2 – zeta potential instrument; and NanoPlus-3 – combination nano particle sizing and zeta potential instrument.
The NanoPlus features a wide array of compatible sample cells for both zeta potential and nano particle size measurements. Each sample cell provides additional measurement capabilities of samples in liquid suspensions. The instrument also features a unique solid sample cell for zeta potential measurement of coated surfaces.
The optional NanoPlus AT is used to titrate sample suspensions in a pH range from 1 to 13. The instrument automatically controls the pH of these suspensions and conducts titrations during both zeta potential or nano particle size analysis measurements.