Zeta potential analyzer

Zeta potential analyzer

Products > Analytical > Zeta potential > ELSZ-2000Z


ELSZ-2000Z measures the surface potential of solid samples and concentrated samples. With the electro-osmosis measurement, the zeta potential of solid samples and micro-volume(130μl or more) samples can be precisely analyzed.

If you would like to additionally check the particle size with a single device, please check our ELSZ-2000ZS model.

 Features  (*newly added function)
  • *Higher sensitivity and shorter measurement time with new APD

  • *Melting point and phase transition point analysis enabled by auto temperature gradient function

  • *Wide temperature range between 0 and 90℃

  • Supports concentrated sample measurement

  • High precision zeta potential analysis thanks to electro-osmosis measurement and plot analysis

  • Supports zeta potential measurement of salt condensed sample

  • *Surface zeta potential of smaller area sample


Measurement principleelectrophoretic light scattering method (laser doppler method)
Optical system
heterodyne optical system
Light sourcehigh power semiconductor laser
Detectorhigh sensitivity APD
Cellstandard cell, small amount of disposable cell or concentrated cell
Temperature0 to 90℃ (with gradient function)
Power supply100V, 250VA
Size and weight380(W) x 600(D) x 210(H)mm, approx. 22kg

Measurement items

Mobility-20x10^-4 ~ 20x10^-4cm²/V·s
Zeta potentialno limitation

Measurement range

Temperature0 ~ 90℃

zeta potential: 0.001% ~ 40%


Ideal for basic and applied research in surface chemistry, inorganic materials, semiconductors, polymers, biology, pharmacy, medicine, and other fields that handle not only fine particles but also the surface science of films and flat samples.

  • New functional material
    - Fuel cell(carbon nanotube, fullerene, function film, catalyst, nano-metal)
    - Bionanotechnology(nano capsule, dendrimer, DDS), nanobubble

  • Ceramic and paints
    - Ceramic(silica, alumina, TiO2)
    - Surface modifier, dispersion and cohesion of inorganic sol
    - Dispersion and cohesion of carbon black and organic pigment
    - Slurry state sample
    - Color filter
    - Flotation adsorption research

  • Semiconductor
    - Alien objects research on silicon wafer
    - Interaction research of abrasive/additive on wafer surface
    - CMP slurry

  • Polymer and chemical
    - Emulsion dispersion and cohesion
    - Surface modifier of latex
    - Function research of polyelectrolyte
    - Process control of paper production and pulp additive research

  • Pharmaceutical and food
    - Emulsion dispersion and cohesion
    - Dispersion/cohesion control of liposome and vesicle
    - Functionality of surfactant(Micelle)

6F, 41, Seongnam-daero 925beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13496, Republic of Korea

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