The Bl-200SM Research Goniometer System is a precision instrument designed for exacting static light scattering (SLS) and dynamic light scattering (DLS) measurements. Field proven in leading laboratories around the world the BI-200SM is ideal for macro-molecular studies and submicron particle sizing. The BI-200SM’s modularity simplifies system expansion to suit almost any application. Featuring a standard optical rail, the BI-200SM can be used with neutral density filters, a polarizer, an analyzer, and a reference detector. Special sample requirements can often be met by changing the cell holder design or size. By adding an optical signal splitter to the beam of scattered light and a second detector, it is possible to eliminate the traditional effects of very high-speed interference from light scattering detectors.