Zeta Potential Analyzer

For the accurate determination of the Zeta Potential Analyzer. It can replace the classical zeta potential measurement and is able to perform very fast titrations.

Nowadays, particle surface charge and interface potentials, such as the zeta potential and the streaming potential, are widely used to characterize the stability of suspensions, emulsions and nanoparticles. These parameters have established as a typical measure representing the electrostatic repulsion between particles.

Calculation model :

• none, as calibrated

Measurement angle :

• none, as mechanical measurement

Size measurement :

• yes

Sample cell :

• Teflon (10 ml, 3 ml, 1 ml)

Zeta potential analysis :

• yes

Zeta streaming potential analysis :

• yes

Zeta measurement range (charge) :

• -3000 mV - +3000 mV

Zeta measurement range (size) :

• 0.3 nm - 300 °m

Electrophoretic mobility :

• Max. 14 (°m/s) / (V/cm)

pH measurement :

• yes

pH measurement range :

• 1 to 14

Conductivity measurement :

• yes

Conductivity range :

• Up to 350 mS cm^-1

Temperature range :

• 0°C - 90°C

Temperature :

• accuracy ° 0.1°C

Temperature control :

• yes

Titration :

• yes

Titration endpoints :

• pH, zeta potential, conductivity, volume and time

Reproducibility (size) :

• Refer to NANOTRAC FLEX

Reproducibility (zeta) :

• 2% with standard dispersion

Sample volume zeta measurement :

• 0.95 ml - 10 ml

Sample concentration :

• Up to 40 %

Carrier fluids :

• Water, polar organic solvents, acid and base

Humidity :

• 90 % non-condensing

Dimensions (W x H x D) :

• 180 x 300 x 260 mm

• The Zeta Potential Analyzer has a high resolution and data point density, which allows very fast, precise and reproducible Zeta Potential Analyzer measurements.

• It is possible to measure the zeta potential of particles in the range of 0.3 nm to 300 °m in a concentration range of up to 40 volume percent.

• Regarding the optimized measurement technology, the Zeta Potential Analyzer can measure up to 5 parameters simultaneously and within a few seconds: Zeta potential, streaming potential, conductivity, pH value, and temperature.

• In combination with our unique Zeta Potential Analyzer, the particle size can also be measured as a sixth parameter simultaneously in the same sample.