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Special Reports Rubric : particle analytics



Rubrics : particle analytics - service provider
TESTA Analytical Solutions is one of the few manufacturer focused on GPC/SEC instrumentation. For Particle Sizing, SLS ad Zeta Potential we partnered with Brookhaven Instruments Corp.

Versatile Analyser for Polymer & Protein Characterisation

- The BI-MwA Molecular Weight Analyser -

Berlin, 5.7.2018


The BI-MwA Molecular Weight Analyser

The BI-MwA Molecular Weight Analyser 
from Testa Analytical Solutions e.K. is a high-performance tool for studying synthetic and natural polymers in solution as well as investigating protein aggregation, oligomerization,  and complex formation.

The analyser
Employing a 30mW, 660 nm diode laser - the BI-MwA uses 7 angles to determine the intensity of scattered light as a function of angle and polymer concentration. Using this information, the system software is able to quickly produce Zimm, Berry and Debye plots from which weight average molecular weight (Mw), radius of gyration (Rg), and second viral coefficient (A2) data are calculated.

Operation modes
The BI-MwA can be used in batch or flow mode, as part of a multi-detector GPC/SEC system, or for following the kinetics of polymerization using the time-dependent static light scattering (TDLAS) technique.

Compactly designed, the flow path of the BI-MwA is vertical avoiding trapped bubbles - a problem commonly associated with horizontal light scattering systems. The robust cell inside the BI-MwA has no sharp corners, only conical shapes meaning previously analysed samples are much more easily flushed out.

Operation
The BI-MwA 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.

Best of all, the BI-MwA
has the highest performance/price ratio of any light scattering detector used for molecular weight determination
.

For further information
on BI-MwA Multiangle Light Scattering (MALS) detector please visit www.testa-analytical.com/Datasheets/BI-MwA.pdf or contact Testa Analytical Solutions on +49-30-864-24076 / info@testa-analytical.com.

Testa Analytical Solutions e.K.
is a company dedicated to supplying the best possible instrumental solutions for characterization of polymers, particles, nanomaterials and proteins. Drawing upon over 30 years experience of technologies serving these markets, the staff at Testa Analytical are happy to share their knowledge with researchers worldwide to help provide them with a working solution for even the most demanding applications.

        
Download datasheet

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