Request InfoWyatt Technology Corp.Based on semiconductor photodiode technology and proprietary computer algorithms, the Optilab rEX refractive index detector from Wyatt Technology Corp. can measure the absolute refractive index of a solution as well as the dn/dc of a solvent at the same wavelength as the light-scattering instrument. The device has no range or gain settings, and the full range of detection is always in view. It has a flow cell with a total volume of 7.4 μl, resulting in minimal band broadening and greater temperature stability. 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