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New Laser Options for Accurate dn/dc Determination

The importance of light scattering in particle analysis An important technique for measuring molecular weight, light scattering is a widely used tool for analysing biopolymers, polymers and proteins. Click to read more. ....

Testa Analytical Solutions , Gel Permeation , Size Exclusion Chromatography , Analytical Solutions ,

Glaukos Corporation: Glaukos Technologies Featured in Numerous Scientific Abstracts at the 2021 European Society of Cataract and Refractive Surgeons Annual Meeting

Glaukos Corporation (NYSE: GKOS), an ophthalmic medical technology and pharmaceutical company focused on novel therapies for the treatment of glaucoma, corneal disorders and retinal diseases, announced ....

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Differential Refractometer for Precise Protein Analysis

May 24 2021
The new HK Series Differential Refractometer from Testa Analytical Solutions eK sets a benchmark for precise determination of specific refractive index increment (dn/dc) - an important parameter for polymer and protein molecular weight determination using light scattering techniques.
The specific refractive index increment (dn/dc) is one of the most underestimated parameters in material science. The assumption that using the approximate values for many polymers and proteins in published literature will not have a huge impact on molecular weight values determined by light scattering experiments, with or without GPC/SEC separation is incorrect. Because dn/dc is a squared term in the Debye Constant of the Zimm equation, any error in determining dn/dc will result in introducing considerable errors into molecular weight determination. In addition to this, precise determination of dn/dc within a GPC/SEC application, is extremely useful in order to ....

Testa Analytical Solutions , Differential Refractometer , Debye Constant , டெஸ்டா பகுப்பாய்வு தீர்வுகள் , வேறுபாடு றேப்ரக்தோமெட்டேர் ,