possible to measure particles from below 0.3 nm to 10μm with different measurement techniques:
• Sedimentation and centrifugal sedimentation in centrifuges
• Dynamic light scattering in laboratory systems
• Scientific Goniometer with cross correlation for research applications

1.1) NanoBrook 90Plus

The 90Plus is a laboratory system for the determination of particle size in diluted suspensions using dynamic light scattering. Signals from two angles 90 or 15 degrees are accessible. The 90Plus covers assize range from about 1 nm to above 5 μm, depending on the physical properties of the sample material. A PC computer is integrated into the system.

The new 90Plus Particle Size Analyzer incorporates all you need for fast, routine, sub-micron measurements. Based on the principles of Dynamic Light Scattering (DLS), most measurements only take a minute or two. Choose from the standard 40mW laser for strong scatterers, or the avalanche photo diode for weak scatterers. And, at the time of manufacture, or as a future upgrade, add the BI-Zeta option for zeta potential measurements.

1.2) BI-DCP Light Detection Centrifuge

The BI-DCP is a centrifugal particle size analyser that uses monochrome light to detect the sedimentation of particles. Advantage of a centrifuge over other types of particle analysers is the fact that absolute measurements (according to Stokes’ law) are performed and no assumptions in the interpretation of measurement values must be made, that would introduce uncertainties. Resolution of neighbouring particle sizes with about 20 % difference in size is excellent.

1.3) BI 200SM Goniometer

The BI-200SM’s modularity simplifies system expansion. Featuring a standard optical rail, the BI-200SM can be
used with neutral density filters, a polarizer, an analyser, and