The Optilab® T-rEX™ (refractometer with EXtended range) is used in conjunction with any HPLC, FPLC, GPC or FFF...
The Optilab® T-rEX™ (refractometer with EXtended range) is used in conjunction with any HPLC, FPLC, GPC or FFF separation system, plus a Wyatt multi-angle light scattering (MALS) detector such as the DAWN® HELEOS® II or miniDAWN™ TREOS®, for the absolute determination of the molar mass of all types of macromolecules in solution. Its dynamic range exceeds that of any comparable instrument by 50x, without sacrificing sensitivity.
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Features of Optilab T-rEX
The T-rEX adds many unique capabilities over other on-line refractometers:
- Measurement of the absolute refractive index of a solution, important for characterizing solvents * Measurement of the dn/dc of a sample at the same wavelength of light as the light scattering instrument, critical for accurate polymer characterization * Temperature control both above and below ambient, from 4°C - 65°C * Range: -0.0047 to +0.0047 RIU * Sensitivity: 7.5 10-10 RIU
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