BeScan Lab – Determination of Dispersion Stability

The BeScan Lab is a device for determining the stability of dispersions and formulations using static multiple light scattering (SMLS). Suspensions, emulsions or foams can be analyzed in their original state (up to 95% by volume) and at temperatures up to 80 °C. The BeScan is useful for quality control of various formulations, for example to optimize storage stability, and also for quantitative analysis of different destabilization phenomena.

By measuring the scattered light intensity in transmission and backscattering, it is possible to analyze highly concentrated systems. This allows the identification of various phenomena such as sedimentation, framing, flocculation, coalescence or phase separation. For this purpose, the sample is analyzed several times over the entire height in order to detect changes in transmission/backscattering as a function of height and time. With a resolution of 20 µm, destabilization processes can be detected much faster than with the naked eye. In addition, analyses at up to 80 °C can accelerate destabilization effects and measurements can be carried out as a function of a temperature ramp.

Key features

• Static multiple light scattering in transmission (0°) and backscattering (135°)
• Scan rate: 20 µm/step
• Up to 95% by volume
• Measuring range particle size: 0.01 – 1000 µm
• Temperature range: RT+5 °C – 80 °C (±0.5 °C)
• Sample volume: 4 – 25 mL