ALV CGS-3 Static & Dynamic Light Scattering
The ALV CGS-3 Compact Goniometer System (ALV GmbH, Langen, FRG) allows for a simultaneous measurement of static and dynamic light scattering. The temperature can be set between 5°C and 50°C.
Static light scattering (SLS) measures the form factor in the angular range of 17° and 152° (equivalent to Qmax ≈ 0.00255 Å-1, depending on solvent index of refraction).
Combining these techniques yields a supplementary information, the structure sensitive parameter ρ (ρ = RG/RH). It allows for an (overall) shape characterization of particles (e. g. sphere, rod, coil etc.).