Particle size analysis of suspensions and emulsions from 0.25 µm to 3,500 µm with small amounts of precious or active substances
Together with the stationary CUVETTE 50 the compact laser diffraction sensor HELOS/BR forms a particularly suitable combination for wet measurement of small amounts of finely dispersed samples with particle sizes ranging from 0.25 µm to 875 µm. Typical applications involve substances that are very intricate to manufacture, therefore valuable and only available in small quantities. Due to their active or toxic properties, special sample handling is often required, and measurements need to be managed with very low particle concentrations.
The geometry of the 50 ml stationary cuvette produces a long optical path for the laser beam (over 20 mm) in the sample liquid, thereby enabling the optimum concentration for reliable measurements – even with low sample concentrations. The titanium finger of the highly-efficient sonotrode can be manually lowered into the cuvette as required. The energy input for the dispersion can be precisely controlled by the software. The necessary homogenisation of the sample during the measurement is achieved with the aid of a PTFE-coated magnetic stirrer with adjustable speed.
The cuvette consists of high-grade optical glass and all joints are sintered, so it is extremely chemically resistant and suitable for most dispersing liquids. Potential contamination of the sample is effectively prevented, as a result of which complete recovery and reuse of the sample in its original state is possible even after the measurement. The stationary cuvette also promotes simple and safe filling and makes cleaning effortless.
The module carrier can be easily pulled out to the front and thus allows a smooth change of the cuvette. When open, the hinged housing allows visual control of the dispersion as well as safe measuring operation due to increased laser protection when the cover is closed.
- Particle size and particle size distribution
- For analyses in the laboratory
- For suspensions and emulsions | Precious, active substances
- 50 ml analysis volume | For small sample amounts
- 6 high-resolution measuring ranges from 0.25 µm to 3,500 µm | R2 to R7
- Cuvette made of sintered glass | No contamination of the sample
- Integrated titanium ultrasonic finger
- Magnetic stirrer
- Laser protection cover for higher safety
Increased optical concentration of the sample through the long optical path of the laser beam in the sample liquid in the CUVETTE 50
The modular concept of the HELOS laser diffraction series allows this configuration to be systematically expanded with numerous dispersion units and dosing options to open up many more product-appropriate measuring applications.
