The Optilab® UT-rEX™ (UHPLC refractometer with EXtended range) from Wyatt Technology is the first RI detector that can be coupled with any UHPLC unit. The device is designed to operate alone as a universal concentration detector, or in combination with the Wyatt µDAWN™ multi-angle light scattering (MALS) detector. It is also capable of measuring absolute molar mass and size of nanoparticles and macromolecules in solution through µSEC-MALS.
The Optilab® UT-rEX™ can measure macromolecules and nanoparticles from 10 to 50nm in size and 200Da to 10MDa in molar mass when integrated with the µDAWN.
The main features of the Optilab® UT-rEX™ are listed below:
- Temperature control (both above and below ambient) - from 4°C to 65°C
- Range: -0.0047 to +0.0047 RIU
- Sensitivity: 1.5x10-9 RIU