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Ligth Scattering Light Scattering

With a Brookhaven Instruments BI-200SM Research Goniometer System this rich field of exploration is open to you for studies of both Static Light Scattering (SLS) and Dynamic Light Scattering (DLS). The Bl-200SM Research Goniometer System provides access to all of these studies with an automatic,modular and versatile system. It is a precision instrument designed for exacting scattering measurements. Based on a special turntable with precision ball bearings and stepping motor, the Bl-200SM's modern design and quality construction guarantee precise measurements due to the wobble-free movement of the detector. It is field proven in hundreds of laboratories. It is ideal for macro-molecular studies and submicron particle sizing. 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 analyzer, and a reference detector. Special sample requirements can often be met by changing the cell holder design or size.

BI-200SM Goniometer System

Particle Explorer Software for the 200SM Goniometer System for DLS and SLS experiments.

Particle Explorer Software Suite

The specific refractive index increment (dn/dc) is one of the values required for the determination of absolute molecular weight with Static Light Scattering (SLS). The importance of this parameter becomes clear when observing the composition of the Debye Constant used for calculations, where the dn/dc is a squared term. As such, a relatively small error in dn/dc will lead to twice the error in molecular weight. It is important to notice that the dn/dc value must be obtained at the same wavelength as the Laser used for Light Scattering or a further unknown error will be introduced. Determination of the specific refractive index (dn/dc) of any dissolved sample can be easily achieved in batch mode with the AYE dn/dc Refractometer, with just a few syringes needed. Measurement of a set of concentrations of the sample under investigation with the AYE dn/dc Refractometer will lead to reliable and reproducible results within minutes. A huge number of wavelength options are available to perfectly match the Laser used in SLS, making sure your results will be perfect.

dn/dc Refractometer Batch Mode

Quickly, easily, and accurately determine absolute molecular weights of proteins and polymers. Eliminate SEC/GPC column calibration and improve data quality. Rapidly reduce uncertainty with no assumptions required and true extrapolation to zero angle. Best of all, the BI-MwA has the highest performance/price ratio of any light scattering detector used for molecular weight determination.

BI-MwA Mutli-Angle Light Scattering Detector (MALS)