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DT-300...                 DT-310... when titration is included

Zeta Potential Probe at multiple MHz frequencies

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Dip Probe in the sample like pH probe or  Place a cup on the top of the probe and fill with as little as 0.1 ml of the sample


Zeta potential Probe yields information on following parameters:

-
zeta potential in concentrated dispersions and emulsions (vfr>1%)
-
zeta potential in porous bodies (Model DT-330 and DT-350)
- electric surface charge density
- iso-electric point
- optimum dose of surfactant
- sedimentation stability of the sample
- presence of small amounts of large sedimenting particles

 

Advantages over micro-electrophoresis and ELS:
  • no dilution, volume fraction up to 50%
  • less sensitive to contamination
  • higher precision (± 0.1 mV)
  • low charges (down to 0.1 mV)
  • electro-osmotic flow is not important
  • convection is not important
  • accurate for non-aqueous dispersions