Particle size, zeta potential, molecular weight analyzer

Particle size, zeta potential, molecular weight analyzer

Products > Analytical > Particle size & Zeta potential & Molecular weight > ELSZ-2000ZS


In addition to existing zeta potential and particle size measurement, molecular weight analysis function is newly added.

Electro-osmosis measurement enables high precision analysis of zeta potential using micro-volume(130μl) disposable cell.


New auto temperature gradient function with extended range between 0 and 90℃ makes melting point and phase transition point analysis possible.

#size, particle size, DLS, nano, PSA, ZPA, zeta potential, dispersion, ELS, stability, surface reforming, surface charge, MW, molecular weight

 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℃

  • *Wide range molecular weight analysis

  • 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 items

Molecular weight360 ~ 2,000x10^4
Particle size0.1 ~ 10,000nm
Mobility-20x10^-4 ~ 20x10^-4cm²/V·s
Zeta potentialno limitation

Measurement range

Temperature0 ~ 90℃

*particle size: 0.00001%(0.1ppm) ~ 40%, zeta potential: 0.001% ~ 40%

*Latex 112nm: 0.00001 ~ 10%, Taurocholic acid: ~ 40%


Suitable for basic and applied research of particle characterization in the field of surface chemical, inorganic, semiconductor, polymer, biotechnology, pharmaceutical and medical as well as surface research of film and flat state sample.

  • 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)