Tag Archives: dn/dc


Published 12 Jul 2018

Why do I need a standard if I have a GPC/SEC system with a light scattering detector?

To many people, obtaining molecular weight information from GPC/SEC analysis involves a lengthy calibration process.  A series of standards of known molecular weight are analyzed and a calibration curve based on the standards’ retention volume is generated.  This can be…READ MORE >

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Published 18 Jun 2013

Refractive index increment dn/dc values

Refractive index increment dn/dc values when you need them? In light scattering a crucial parameter which appears together with the Rayleigh Ratio RΘ is the refractive index increment, also known as “dn/dc”. Typically, Kc/RΘ is plotted versus concentration to extrapolate…READ MORE >

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