BI-MwA

BI-MwA

Quickly, easily, and accurately determine absolute molecular weights of proteins and polymers. Eliminate SEC/GPC column calibration and improve data quality.

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Description

Quickly, easily, and accurately determine absolute molecular weights of proteins and polymers

The BI-MwA has the highest performance/price ratio of any light scattering detector used for molecular weight determination. Eliminate SEC/GPC column calibration and improve data quality. Rapidly reduce uncertainty with no assumptions required and true extrapolation to zero angle.

Simple to use, sophisticated features

Inject your sample into the low-volume, 7-angle flow cell. The sample is illuminated by a temperature stabilized, precision power-controlled diode laser. The ultra-stable, high-sensitivity, low-noise CCD detector automatically collects the scattered light. Then, the software extrapolates the data to zero angle for the absolute molecular weight determination.

Features at a glance

  • Multiangle, laser light scattering detector for SEC/GPC or stand alone use
  • Proteins & polymers
  • Polysaccharides & biopolymers
  • Study protein aggregation, oligomerization, & complex formation
  • Mn, Mw, Mz, Rg, A2
  • Small footprint, stackable
  • RI and Viscosity detectors optional

Two ways to use the BI-MwA

Determine the molecular weight distribution (flow mode) or determine the average molecular weight (batch-mode). Macromolecular samples often have a range of molecular weights. In some cases, this distribution is quite narrow, and in other cases, it is very broad and/or multimodal. Variations in the distribution can indicate the presence of impurities or aggregation. However, for other applications, the average molecular weight is sufficient to characterize your sample. Sometimes the distribution is of interest, and sometimes the overall average is sufficient. Either way, the BI-MwA is the right tool for the job.

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