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Retsch Technology > RT > Products > Laser Light Scattering > LB-550V > Function & Features

Nano Particle Analyzer
HORIBA LB-550V

The LB-550V operates on the basis of dynamic light scattering. It allows for the precise measurement of nano particles in a size range from 1 nm to 6000 nm and a concentration range from ppm up to 40% solids. A very effective detector with a photomultiplier ensures the reliable measurement even of particles which scatter light only weakly such as proteins and polymers.
Thanks to the temperature-controlled cell holder and integrated viscosimeter, the LB-550 V allows optimum control of the measurement conditions without error-prone manual interfaces.
The analyzer is used for the measurement of fine suspensions, emulsions, all kinds of colloids and brines in aqueous and organic media.

Built-in viscosimeter
For unknown samples, the integrated viscometer helps to directly measure and compensate for variations in viscosity which can significantly affect the measurement results.

Application Examples

catalysts, ceramics, cosmetics, foodstuffs, inorganic materials, medical products, nano-coatings, paints, paper, pigment dispersions, plastics, polymer materials, research & development for nano-particles, semicondutors (CMP), ...

Product Advantages
  • Extreme wide measurement range of 1 nm to 6 µm
  • Concentration range from 1 ppm up to 40% solids
  • Particle size distributions and scattered light intensity are displayed in the real time window
  • Highest precision and resolution
  • Short measurement times of approx. 2 minutes (from start of measurement to display of results)
  • Integrated viscosimeter
  • Convenient handling, hardly any maintenance- and cleaning effort
  • SOP-methodology, validation of results, 21 CFR Part 11 compliant software
Features
Measuring principle Dynamic Light Scattering
Measuring range 1 nm - 6000 nm
Type of analysis Wet analysis
Concentration range 1 ppm up to ca. 40 Vol.%
Measuring time ~ 2 minutes, from start of measurement to display of data
Measuring volume ca. 0.1 - 30 ml
Dispersion liquid Water, alcohol and other organic solvents (subject to the used cuvette)
Optical system
- Light source
- Detector
Homodyne detection of back scattered light
650 nm Laser Diode, 5 mW
Photo-Multiplier
Measuring cell Cuvettes
Laser-type Class 1
Temperature range 5 - 70 °C (build in Peltier-temperature control), sensor for temperatur in the cuvette
Operating environment 15 °C - 30 °C, less than 85% rel. Humidity (no condensation)
Power supply 100/120/230 V 50/60 Hz 150 VA
Dimensions (W x H x D) ~ 340 x 530 x 565 mm
Weight (Measuring unit) ~ 36 kg
Interface SCSI ll (between PC and analyzer)
Operating unit Operating and evaluation software in German, English, French for PC with Windows XP Operation with mouse and keyboard
*depending on feed material and instrument configuration/settings  
Function Principle
The focal point of the laser beam is brought as close as possible to the inner wall of the cell. This suppresses the effects of multiple scattering in highly concentrated samples and still provides sufficient signal strength for lower concentration samples because the scattered light is not attenuated by passing through a large volume of the sample dispersion.

The angle of irradiation into the cell is also carefully controlled, eliminating the effects of stray and reflected light. This increases the signal-to-noise ratio and the ability of the LB-550 to measure diluted samples.


Sitelinks
 Application Examples
 Product Advantages
 Features
 Function Principle



Retsch Technology is the exclusive distributor of Horiba particle analyzers for Germany, Switzerland, Austria, Netherlands and Belgium.
For other countries please find your local contact at  horiba-particle.com.