Products > Analytical > Particle size & Zeta potential & Molecular weight > ELSZ-2000ZS
ELSZ-2000ZS is a master product measuring not only the particle size and molecular weight but zeta potential from dilute solution to concentrated solution. New auto temperature gradient function with an extended range from 0 to 90℃ completes melting point and phase transition point analysis. With the electro-osmosis measurement, zeta potential of solid samples and micro-volume(130μl or more) samples can be precisely analyzed.
*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 principle | particle size | dynamic light scattering method (photon correlation method) |
zeta potential | electrophoretic light scattering method (laser doppler method) | |
molecular weight | static light scattering method | |
Optical system | particle size | homodyne optical system |
zeta potential | heterodyne optical system | |
molecular weight | homodyne optical system | |
Light source | high power semiconductor laser | |
Detector | high sensitivity APD | |
Cell | particle size/molecular weight | square cell |
zeta potential | standard cell, small amount of disposable cell or concentrated cell | |
Temperature | 0 to 90℃ (with gradient function) | |
Power supply | 100V, 250VA | |
Size and weight | 380(W) x 600(D) x 210(H)mm, approx. 22kg |
Measurement items
Molecular weight | 360 ~ 2,000x10^4 |
Particle size | 0.1 ~ 10,000nm |
Mobility | -20x10^-4 ~ 20x10^-4cm²/V·s |
Zeta potential | no limitation |
Measurement range
Temperature | 0 ~ 90℃ |
Concentration | *particle size: 0.00001%(0.1ppm) ~ 40%, zeta potential: 0.001% ~ 40% |
*Latex 112nm: 0.00001 ~ 10%, Taurocholic acid: ~ 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.
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)
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