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Precise Determination of Polymer & Protein Molecular Weight

publication date: Feb 14, 2022
 | 
author/source: TESTA Analytical Solutions

precise-determination-polymer-amp-protein-molecular 

For all static light scattering applications - dn/dc (the specific refractive index increment) is a crucial parameter for ensuring accurate and precise measurements of molecular weight. Developed and refined over many years -TESTA Analytical's cutting edge technology sets a benchmark for precise determination of the dn/dc of polymers and proteins. 

TESTA Analytical's powerful HK Series dn/dc refractor system may be used to make measurements in either static or dynamic mode. In static mode, the specific refractive index of dissolved samples can be easily and precisely determined in just a few minutes. Beneficially, the system offers a large number of wavelength options enabling precise matching of your light scattering detector laser operating wavelength, thereby ensuring reliable and reproducible results every time. Where the dn/dc value of the sample is already known, the dn/dc refractometer can be used for precise and sensitive concentration determination. The amount of sample used for this can also be easily recollected and therefore used for further investigations.

 

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