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Particle Charge Analysers

Stabino - Automatic Charge Titration System

The Stabino is designed to provide automatic titration of samples to determine the charge potential on the surface of particles for stability studies. The Stabino will automatically generate a charge map to allow users to easily identify parameters of interest such as the IEP and stability zones.


The Stabino can automatically complete the full charge titration analysis within 5 minutes, which is significantly faster and less labour intensive compared to other competing systems (typically in hours).

Particle Sizing

• Method: Dynamic Light Scattering

• Size Range: 0.8 nm – 6.5 μm

The ZETA-check is the world's fastest zeta potential analyser which allows measurements in 2 seconds! In contrast, instruments based on Electrophoretic Light Scattering (ELS) would typically take a few minutes for a similar measurement and would require specialised cuvettes and information on sample optical parameters.

The measured data will be shown on the onboard LED display and can be printed on an optional printer attachment. Up to 1,000 records can be saved and transferred subsequently to a PC. The ZETA-check is a small portable instrument and can be useful for running quick checks on the zeta potential of samples.

The ZETA-check

The ZETA-check is the fastest zeta potential analyser in the world! Each measurement takes 2 seconds!

• Particle Size for Zeta Potential Analysis: 0.3 nm – 100 μm

• Conductivity: 0.01 – 350 mS/cm

• Sample Volume: 1 or 10 ml

The ZetaView can provide the zeta potential distrubution of samples, which could be of interest to mixtures of different materials and other bi-modal samples. This provides an indepth understanding of the zeta potential properties of a sample as compared to the typical average zeta potential values given by competing technologies.

Data can be obtained away from the sample cell walls to avoid the influence by ionic coatings on the wall, which is always present in ultrafine particles. This allows the true zeta potential values of the sample to be obtained.


The ZetaView can also be supplied with a different wavelength of laser for fluorescent particles. It is the ideal instrument for measuring very low concentration samples, such as Extracellular Vesicles (EVs), to allow the monitoring of aggregation, storage conditions and cellular interactions.

Measuring samples at low concentrations (ppm level) are usually very challenging when performed on an instrument based on Dynamic Light Scattering. The ZetaView is best suited for studying the size and zeta potential of such low concentration samples.

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