Wyatt Technology Optilab UT-rEX RI detector for UHPLC

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The Wyatt Technology Optilab UT-rEX is claimed to be the first RI detector of its kind, specifically designed for use with UHPLC systems using columns packed with small beads. Besides UV, mass spectrometry and evaporative light scattering, there has been no RI detector available for UHPLC applications until now. The product uses a combination of miniaturised components, semiconductor photo-diode technology and proprietary computer algorithms.

Due to the extremely small volumes of UHPLC, the dead volume for the instrument is <1.5 µL, compared to 10-20 µL for other RI detectors. As a result, the product offers high resolution which will not be compromised. In addition to having no range or gain setting, the full range of instrument detection is always present and the full sensitivity exists over the entire range. The small flow cell and temperature regulation enable stable RI baselines and RIS signals which further enhance the detector’s sensitivity.

The product can be operated below ambient temperatures as easily as above ambient. Its no-hassle temperature control can be programmed down to 4°C or as high as 50°C. The device is compatible with all UHPLC systems.