Home » Brookhaven » Molecular Weight Analyzer BI-MwA

Molecular Weight Analyzer BI-MwA

Chromatography

BI-MwA

Molecular Weight Analyzer

Brookhaven's BI-MwA Molecular Weight Analyzer

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

Absolute Molecular Weights

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.

The BI-MwA Molecular Weight Analyzer is simple to use, but incorporates 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.

There are 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.

©2012 Brookhaven Instruments Corporation · 750 Blue Point Rd; Holtsville, NY 11742 USA · T: +1(631) 758-3200 · F: +1(631) 758-3255 · email: info@BrookhavenInstruments.com

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